9 Feb 2003

List of probable and possible impact structures of the World

in alphabetical order

Note! This page is filed. No updates will be done to this list. - 8 Apr 2009

Here is six different lists:

NAME, country              LATITUDE  LONGITUDE DIAM.  AGE or DATE     REMARKS
                                               (km)      (Ma)

PROVEN (!?) impact structures

BIZENEUILLE, France          N46 24  E 02 36   300.0   215.0         claim to be proven?
FHON, Timor sea              S       E           4.8    24.6 - 36    submarine
GATUN, Panama                N 9 06  W 79 47     3.0      ?          Proven? (2.2-3 km.) 
HAIBERLY, ??                 ?       ?            ?       ?          Proven? Where? in Australia?
HOWELL, USA                  N35 14  W 86 36     1.6  ~350.0         Proven? Shatter cones?
JEPTHA KNOB, USA             N36  6  W 85  6     4.8   452.0         Proven.(?) Ir anomaly.
"LDG IMPACT", Libya          N       E            ?       ?          PDF's in sandstones
MULKARRA, Australia          S       E          17.0      ?          (9 - 20 km?) Proven?
   North Bonaparte Basin: see FHON
PEERLESS, USA                N?? ??  W ?? ??     6.5   460-480       (subsurface) PFs
RIO CUARTO D, Argentina      S3? ??  W 6? ??   3.5x0.7   0.01        R
RIO CUARTO E, Argentina      S3? ??  W 6? ??   3.5x0.7   0.01        R
SIRENTE, Italy               N42 10  W 13 35     0.140 412AD±40year  Proven? 18 cr. Mag. anom.?
SPRING RANGE, Australia      S       E           0.3      ?          proven
TAI HU, China                N31 15  E120  5   >70.0   365.0         proven? Chinese microtekt.?
TALUNDILLY, Australia        S       E          30.0      ?          proven
TSENKHER, Mongolia           N43 37  E 98 22     3.6    Quat?        
TYGU, Australia              S       E            ?     precam.      Proven?    
UM-HADID, Saudi Arabia       N21 30  E 50 40     0.01     ?          4th Wabar? Met., glass.
VERSAILLES, USA              N38  2  W 84 42     1.5  <400.0         Proven?

Impact related geological layers

These are geological layers with impact related materials like microtektites, spherules, shocked quartz or glass. Also K/T layer is one of these, but since Chicxulub structure is found, I don't list K/T layer (it is only a ejecta deposit of Chicxulub crater). All of these layers are in matter of fact quite well confirmed and I'm thinking of moving these in my main list of Impact structures of the World. Unlike typical impact structures, origin of these layers are not known and the original impact structure may have be even other side of the planet today. 

BUENOS AIRES, Argentina      S       W          15.0s   10.1±0.4     layer of melted glass
CHAPADMALAL, Argentina       S       W          29.0s    3.3         layer of melted glass and Ir
NECOCHEA, Argentina          S       W           snf     0.46±0.03   layer of melted glass
"TEKTITE CRATER", ?          N       E           snf     0.793       australasian tektites
2470Ma layer, ?              ?       ?           snf  2470.0 ±3.0    in Australia
2557Ma layer, ?              ?       ?           snf  2557.0 ±49.0   in South Africa
2560Ma layer, ?              ?       ?           snf  2561.0 ±8.0    in Australia
2630Ma layer, ?              ?       ?           snf  2630.0-2680.0  in Australia
3200Ma layer, ?              ?       ?           snf  3200.0 ±100.0  in South Africa
3460Ma layer, ?              ?       ?           snf  3460.0         in South Africa
In diameter column:
s = diameter is for possible impact structure suggested
snf = impact structure not found (in some cases does not exist anymore)
More information wanted! Some of cases above are already proven,
but I'll like to have coordinates before I'll add structure into my list.

PROBABLE impact structures

These structures has lots of indication elements which make them probable impact structures. 

AL UMCHAIMIN, Iraq           N32 41  E 39 35      ?       ?
ARKHYS, Georgia              N43 36  E 46 19     2.0      ?          Proven?    
  Bottenviken: see Trinddjupet
AOROUNGA 2, Chad             N19 22  E 19 22    11.6   360.00?       In chain with Aorounga?
AOROUNGA 3, Chad             N19 22  E 19 22    12.0   360.00?       In chain with Aorounga?
AOROUNGA 4, Chad             N19 22  E 19 22    11.7   360.00?       In chain with Aorounga?
BANGWEULU, Zambia            S11 32  E 30  8   150.0  <620.0
BORLY, Kazakhstan            N47  5  E 74 45     0.2      ?          Fe-Ni spherules found?
CHINGA, Russia               N51  0  E 94  0      ?       ?          Crater missing? Iron met.
CHINLE, USA                  N39  9  W109 34     0.034  150-250 yr   Witnessed? (23x34 m)
DUOBBLON, Sweden             N65 35  E 17 10    80.0  1800.0         (strongly eroded crater?)
EL-BAZ, Egypt                N24 12  E 26 24     4.0
GALLEJAUR, Sweden            N65  6  E 19 18    60.0  1873.0 ±10     (100km?)
GILBUÉS, Brazil              S10 10  W 45 14     9.65  112-290       
GUARDA, Portugal             N40 37  W  7  6    35.0      ?          PDs
HABHAB, Oman                 N19 52  E 56 56     6.0      ?          Similar than Aorounga 1
HARDANGERVIDDA, Norway       N??  ?? E ?? ??      ?       ?         
HEBRON, Canada               N58  2  W 64  2     0.198   0.00087     (known for a long time)
HICO, USA                    N32  0  W 98  2     9.0    <60.0        
HOTCHKISS, Canada            N?? ??  W ?? ??     3.5   110-330       Subsurface. Highly probable.
HUMMELN, Sweden              N57 22  E 16 15     1.2   470-460       Proven?
ITTURALDE, Bolivia           S12 30  W 67 30     9.0     0.022 ±0.1  Young structure in jungle?
JAMES RIVER, Canada          N?? ??  W ?? ??     5.0      ?          (subsurface)
JIESJAURE, Norway            N69 54  E 24 54     6.0      ?          
KOGO, Equatorial Guinea      N 1 11  E 10  1     4.67  145.0         Origin of carbonados?
KONUS, Kazakhstan            N48 33  E 76 36     0.25     ?          5 craters. Brec. and glasses?
LA PALOMA, Uruguay           S34 40  W 54 10      ?       ?          Impactites?
LAGO DI TREMORGIO, Switzerl. N46 28  E  8 43     1.36     ?          Shattercones?
LAKE MICHIKAMAU, Canada      N54 34  W 64 27     5.6      ?          
LANDSORTSDJUPET, Sweden      N58 36  E 18 30    30.0 ~1200.0         (submarine)
LEDFLAT, Sweden              N65 30  E 17  6     7.0      Prot.      (=Duobblon?)
LOFTAHAMMAR, Sweden          N57 54  E 16 30     1.5      ?          Shocked granite?
MÉKAMBO, Gabon/Congo         N 0 56  E 13 40    50.0  2100-2800
MENIHEK LAKE EAST, Canada    N53 42  W 66 40     4.8      ?          (twin with Menihek W)
MENIHEK LAKE WEST, Canada    N54 19  W 67 10     4.0      ?          (twin with Menihek E)
  Merewether: see Hebron
MINKÉBÉ, Gabon               N 1 21  E 12 25    90.0  2100-2800
NTWETWE, Botswana            S20 55  E 24 50     7.0  <200.0
PECHENGA, Russia             N69  0  E 30  0    80.0  1970-1940      (PDF's?)
   Oman ring: see Habhab
QUILLAGUA,Chile              N21 30  W 69 20      ?       ?          Small craters. Iron met.
RICHÂT DOME, Mauritania      N20 30  W 11 20    50.0      ?          Non-impact coesite?
RIO CURUCÁ, Brasilia         S 5 20  W 71 30     1.6   13 Aug 1930?  Witnessed 1Mt impact!!!?
SAINT IMIER, Switzerland     N47 10  E  7  0     0.4      ?          Shatter c.? Iron particles?
SILVERPIT, United Kingdom    N       E           3.0  60.0-65.0      Submarine
SITHYLEMENKAT, USA           N66  7  W151 23    12.0      ?          (0.01Ma?) Ni anomaly.
SKEDVIKEN, Sweden            N59 48  E 18 18     5.5      ?          
SMÖLA, Norway                N63 24  E 08  0    30.0      ?          (submarine?)
SORTLAND, Norway             N68 48  E 15  0      ?       ?          Impact breccia, no structure?
   Sythylemenkat: see Sithylemenkat
TAZARAL, Kazakhstan          N46 29  E 73 42   6.5x2.0    ?          Breccias ang possibly glass.
TOKRAUSKAYA, Kazakhstan      N47 44  E 75 29   220.0      ?          Shatter c., brec. and glass.
TRINDDJUPET, Sweden          N64 12  E 22 24     5.0      Phan.      (submarine)
VELINGARA, Senegal           N13  2  W 14  8    48.0    24-42        (satellite data)
WHITE VALLEY, Canada         N?? ??  W ?? ??     7.0   <75.0         
WIPFELSFURT, Germany         N48 51  E 11 50      ?       ?          Shatter cones?
ÅVIKE, Sweden                N62 17  E 17 29     9.5     <570        (submarine) <80 Ma?

SUGGESTED or POSSIBLE impacts structures

It is most likely that most of these are not impact structures. However, I thought it is a good idea to list all of these suggested structures as well. There is lots of circular lakes in this list and it is not a very good identification methods, since they are usually picked up from maps or aerial photographs. See more info in the end of this list.

AGNAK, Canada                N67 30  W108  0     0.170    ?          5 structures. Pingoes?
AKCHOKY, Kazakhstan          N47 42  E 72 23    10.0      ?          A possible structure.
AKONVESI, Finland            N63  1  E 28 16     2.5      ?          #
AL'AMARAH, Iraq              N31  9  E 47  5     3.5      ?          Near-circular structure.
AL MADAFI, Saudi Arabia      N28 40  E 37 11     6.0  <360.0
ALA-KITKA, Finland           N66 17  E 28 58     8.0      ?          #
ALEXEYEVSKOYE, Russia        N55 18  E 50  6     0.04     ?          May be meteoritic in origin.
ALVASJÖN, Sweden             N57 54  E 14  0     1.5      ?          
AMAK, USA                    N55 44  W163  9     0.16     ?          Perhaps meteoritic in origin. 
AMAMI, Japan                 N28 25  E129 38     2.4      ?          Two craters?
AMURSKII, Russia             N48  0  E132 42     0.175    ?          A lake.
ANDERVIKEN, Sweden           N58 54  E 17 36     2.0      ?
ANEFIS, Mali                 N18  0  W  0 30     3.0      ?          ASTER research
ARCHANGEL'SKOE, Russia       N57 48  E 46 18     0.09     ?          A lake.
ARNHEM, Australia            S13 10  E135 40      ?       ?
AUKSTADVARIS, Lithuania      N53 30  E 24 36     0.185    ?
AURESELKÄ, Finland           N62  0  E 23 23     4.5      ?          #
AVON, USA                    N?? ??  W ?? ??      ?       ?
AZENAK, Niger                N16 30  W  8  0     1.0      ?          ASTER research (2 struct?)
BAGHDAD, Iraq                N33 20  E 44 25      ?       ?
BALKHASH, Kazakhstan         N45 45  E 77 30     2.0      ?
BALKHASH LAKE, Kazakhstan    N47  0  E 73  0   720.0      ?          Not convincing.
BARABA, Russia               N54 30  E 77 30      ?       ?
BARABOO, USA                 N       W            ?       ?          Circular feat.? Pseudotach.?
BASRA, Iraq                  N30 20  E 47 40      ?       ?
BAY OF CAMPECHY, Mexico      N20  0  W 94  0      ?       ?
BELINGA, Gabon               N 1 28  E 12 53     7.0      ?          Possible
BERDICHEV, Ukraine           N50  0  E 28 30     0.03     ?          Several lakes. 
BEREZOVO, Russian            N63  0  E 65  0     0.25     ?          A lake.
BIG LAKE, Canada             N64 52  W112 57      ?       ?
BORISKOVO, Russia            N56  0  E 36 30     0.01     ?          Several depressions.
BRUKKAROS, Namibia           N25 50  E 18  0     2.0      ?          Breccia?
BURTRÄSKET, Sweden           N64 42  E 21  0    25.0      Prot.      
BUSHVELD, South Africa       S25     E 29         ?       ?
BUTARE, Rwanda               S 2 36  E 29 45      ?       ?
BÅVEN, Sweden                N58 54  E 17  0    15.0      ?          
CHARRON LAKE, Canada         N52 44  W 95 15      ?       ?
CHIK, Russia                 N55     E 82 30     0.075    ?          A lake.
CLOUD CREEK, USA             N42 50  W106 20     7.0   190.0
COLONIA, Brazil                                   ?       ?
DIRRANBANDI, Australia       S28 35  E148 10      ?       ?          Several craters
DOGUBAYAZID, Turkey          N39 32  E 44 14     0.035    ?
DOLGOE, Russia               N54     E 37 54     0.03     ?          Six small lakes.
DRÄNGSJÖN, Sweden            N59 30  E 18 30     1.5      ?
DUMAS, Canada                N       W            ?     Late Cret.
DYCUS, USA                   N36 22  W 85 45      ?       ?          Shatter cones?
DZHAUS, Tadzhikistan         N39 12  E 67 18     0.007  in 1950?     Several small depressions.
DZHEZKAZGAN, Kazakhstan      N47     E 70      300.0      ?          Central uplift?
ELLEF RINGNES, Canada        N78 30  W102 30      ?       ?          Four crater-like structures.
EL-MIRBA, Jordan             N32 42  E 38 52    10.0      ?          Near Al Umchaimin
EL MRAYER, Mauritania        N22 30  W  7 33     2.0      ?          ASTER research
EL MREITI, Mauritania        N23 30  W  6  5     0.7      ?
ERG GHECH, Algeria                                ?       ?          Small shallow craters.
ERNUR, Russia                N56 48  E 47 56     0.125    ?          A lake.
FINSE, Norway                N60 20  E  7  1     0.2   800-400
FIRTH, Great Britain         N60 30  W  0 58      ?       ?          Deep embayment.
FONTAINE LAKE, Canada        N59 42  W106 25      ?       ?
FOUM TEGUENTOUR, Algeria     N26 15  E  2 57     8.0      ?          Diapiric?
FREETOWN, Sierra Leone       N 8 20  W 13 20      ?       ?
FURNACE CREEK, USA           N       W            ?       ?
GADDBERGSÖ, Finland          N60 23  E 26 24     4.5      ?          #
GALLOUÉDEC, Mauritania       N21  0  W 15 40      ?       ?
GARET EL-LEFET, Libya        N25  0  E 16 30     3.0      ?
GLAVA, Sweden                N59 30  E 12 18      ?   1200-900
GOGUI, Mauritania            N15 30  W 11 67     0.6      ?          ASTER research
GONAMSKI, Russia             N56 18  E126 48     0.025    ?
GOURMA, Mali                 N 1 19  W 15 17     0.2      ?          ~20 craters (0.02-0.2 km).
GUERRARA, Algeria            N33 19  E  5 17      ?       ?
GULF OF ST. LAWRENCE, Canada N47  6  W 63  3   290.0      ?          Hardly.
GWARKUH, Iran                N       E           0.045    ?          (The Geog.Jour. March 1933)
HAAPASELKÄ, Finland          N61 35  E 28 17     5.5      ?          #
HAGENS FJORD, Greenland      N81 45  W 28 15      ?       ?          Over 50 circular structures.
HALSARENDJUPET, Sweden       N60 12  E 19  6    15.0      Pal.       (submarine)
HANKAJÄRVI, Finland          N62 53  E 24 21     2.7      ?          #
HANKAVESI, Finland           N62 22  E 26 24     3.5      ?          Check: Non-impact structure?
HARADS, Sweden               N       E         170.0      ?
HARTNEY, Canada              N49 24  W100 40     6.0      ?          Disturbed area.
HAUTOSELKÄ, Finland          N61 37  E 26 28     5.0      ?          # Check: No evidences.
HAZEL GREEN, USA             N       W            ?       ?          
HEMAUER PULK, Germany        N49  5  E 11 47     2.0      ?          14 small craters. with Ries?
HEMMESTORP, Sweden           N56 18  E 14  6     6.0      ?          
HICKS, USA                   N       W            ?       ?          
HIRVISELKÄ, Finland          N62 47  E 27 49     7.0      ?          #
HOGANE, Sweden               N58 36  E 12  6     5.0      ?          
HONGKONG, China              N24 42  E          11.0    43.3
HOSHIKUBO, Japan             N26 16  E127 47     0.6      ?
HOSHINOKO-ZAN, Japan         N35 44  E133 14      ?       ?
HOUSUSELKÄ, Finland          N68 13  E 25  0     6.0      ?          Geoph. data? Check: No evid.?
HÄRKMERIFJÄRDEN, Finland     N62 11  E 21 27     6.0      ?          Check: Check: No evidences.
IDRITSA, Russia              N56 18  E 28 48      ?       ?
INTALY, Kazakhstan           N61 58  E 30 55    20.0      ?
ISO-RÄYRINKI, Finland        N62 55  E 23 55     2.0      ?          7km? (suevite?)
IVAR, Sweden                 N55 27  E 16 23     5.0  <250.0         (submarine)
JUOJÄRVI, Finland            N62 44  E 28 38     6.5      ?          #
JUURUSVESI, Finland          N63  4  E 27 55    12.0      ?          #
JÄRNA, Sweden                N60 36  E 14 12    12.0      ?          
KAIBSKO-CHUISKAYA, Kazakstan N46     E 72 30   550.0      ?          Hardly.
KAKKARAVAARA, Finland        N62 58  E 30 56    12.0      ?          #
KAKIATTUKALLAK, Canada       N57 42  W 71 40     6.0      ?
KALOTFJÄRDEN, Finland        N63 20  E 22  6    17.0      ?          # 24km? Check: Non-impact?
KARACHEV, Russia             N53 12  E 35  6      ?       ?          A lake.
KARAGANDA, Russia            N49 48  E 73 12     0.08     ?          A small depression.
KASABA, Russia               N53 48  E 61 24     1.0      ?          Three lakes.
KASARIK, Russia              N49 54  E 38 18     0.7      ?          20 m deep depression.
KASARINSELKÄ, Finland        N68 57  E 27 41    10.5      ?          # 22km?
KATEN, Russia                N47     E136 24     0.04     ?          A lake.
KATTFJORDEN, Sweden          N59 24  E 13  6     7.5      ?
KEELEY LAKE, Canada          N54 54  W108  8    12.8      ?          A lake.
KET, Russia                  N       E          none      ?          Death forest. With Tunguska?
KEURUSSELKÄ, Finland         N62 10  E 24 41     7.5      ?          #
KHURUNXARAGA, Botswana       S19 50  E 23 20     0.022    ?
KILA, Sweden                 N59 12  E 12 48      ?   1600.0      
KILMICHAEL, USA              N33 30  W 89 33      ?       ?          A "cryptoexplosion structure"
KIURUJÄRVI, Finland          N67 31  E 27 25     2.0      ?          # Check: Shatter cones?
KOBRIN, Russia               N52 12  E 24 12     0.25     ?          A lake.
KOGRAM, Russia               N       E            ?       ?          Disturbed rocks.
KONDER, Russia               N57 30  E134 48     9.0      ?
KORPINEN, Finland            N63 30  E 27 57     3.0      ?          # Check: No evidences.
KOSTONJÄRVI, Finland         N65 48  E 28 27     9.0      ?          Check: Non-impact structure?
KOTKATSELKÄ, Finland         N61 44  E 25 36     5.0      ?          #
KOZHVA, Russia               N65     E 56 30     0.1      ?          Threes overturned?
KÖKLOTFJÄRDEN, Finland       N63 17  E 21 44     7.4      ?          # 11km?
LA SAUVETAT, France          N44 52  E  1 31      ?       ?
LABYNKYR, Russia             N62 30  E143       60.0      ?
LAC BOUCHET, France          N44 56  E  3 47      ?       ?
LAC CHATELAIN, Canada        N60 15  W 74 36     0.06     ?          Collapsed pingoe?
LAC IRO, Chad                N10  6  E 19 25    12.0      ?
LAC ROZ, Canada              N54 49  W 72 55      ?       ?
LAKE CONSTANCE, Switzerland  N47 35  E  9 25      ?       ?          Related to Ries?
LEPSINSK, Russia             N45 30  E 80 42     0.55     ?
LIANOZOVO, Russia            N55 54  E 37 36     0.05     ?
LIKSTAMMEN, Sweden           N58 54  E 17  6     3.0      ?  
LIMESTONE MOUNTAIN, USA                           ?       ?
LINTUSELKÄ, Finland          N63  2  E 25 11     4.0      ?          #
LOHTAJANSELKÄ, Finland       N64  6  E 23 33    10.5      ?          #
LORNE BASIN, Australia       S       E         ~30.0   L.Triassic        
LUOTEENJÄRVI, Finland        N64 39  E 27 20     3.6      ?          # Check: Breccia, non-impact?
LYCKSELE, Sweden             N       E         120.0  1800-1260  
LYNG-GUKTA, Norway           N69 13  E 29 12     5.5      ?          #
LÄNSIHAARA, Finland          N65 39  E 26 53    10.0      ?          #
MARRAS, Finland              N66 54  E 25 12   160.0  2216-1843      (geophysical data)
MARSJÖN, Sweden              N59  6  E 12 30      ?   1600.0
MARUDI MOUNTAIN, Br. Guyana  N 2 10  W 59 10    none?   11. Dec 1935 Witnessed airblast? 32km wide.
MATAM, Senegal               N15 40  W 13 18      ?       ?          Several.
MCINTOSH BAY, Canada         N52 35  W 94  5      ?       ?
MECATINA, Canada             N50 50  W 59 22     3.2      ?          A crater-like structure.
MEEN LAKE, Canada            N64 58  W 87 40      ?       ?
MEJAOUDA, Mauritania         N22 43  W  7 18     3.0      ?
MELAVESI, Finland            N62 57  W 28 10     2.8      ?          #
MELVILLE ISLANDS, Canada     N76 40  W109  0      ?       ?          Ring dykes?
MENDORF, Germany             N48 50  W 11 36     2.5      ?
MICHLIFEN A, Morocco         N32     E  3        1.9      ?          No impact in origin?
MICHLIFEN B, Morocco         N32     E  3        0.8      ?          No impact in origin?
MOGOL, Russia                N57 30  E108 30     0.04     ?          Ejected material?
MORA, USA                    N36     W105        0.01     ?          Angular rock frag. on the rim.
MOSQUITO GULF, Central Amer. N 9     W 81 30      ?       ?
MOUNT DOREEN, Australi       S23     E133         ?       ?          Four crater within one larger?
MULLSJÖN, Sweden             N58 18  E 14  6   2.5-4.5    ?          
MURGAB, Tadzhikistan         N38  6  E 74 17     0.09     ?          Two craters. Iron on walls?
MÖCKELN, Sweden              N59 18  E 14 30     4.5      ?          
NITSIJÄRVI, Finland          N69 16  E 28  1     4.0      ?          #
NOVKI, Russia                N56 24  E 41  6     0.04     ?          Eight conical depression.
NOVO GUROVKA, Russia         N54  6  E 56  6     0.01     ?          2 depression. Ejected stones?
NULANKI, Sweden              N68  6  E 22 54     2.0      Cen.?      Muonionalusta iron? 
NUNJES, Norway, Fin., Swe.   N69 12  E 20 30   200.0      Prot.      (geophysical data)
NYIKA, Malawi                S10 35  E 33 43     0.08  in 1959?      6 m deep. "Formed" in 1959?
NÄSKÄNSELKÄ, Finland         N66 12  E 26 53     4.5      ?          #
OGNI, Russia                 N51 48  E 83 30     0.14     ?
OLD FORT RAE, Canada         N62 40  W115 49      ?       ?
OSTASHKOV, Russia            N57 12  E 33 12     0.075    ?
OTNOS, Russia                N53     E 35        0.05     ?          Four lakes.
OURON NDIA, Mali             N15  0  W  4 30     3.0      ?          ASTER research
PADUN, Russia                N60     E 53 30     0.1      ?          A lake.
PANTHER MOUNTAIN, USA?       ?       ?            ?       ?          (proven?)
PARIS, France                N48 48  E  2 30      ?       ?          Small lakes.
PARRY SOUND, Canada          N45 23  W 79 56     2.2      ? 
PATALAHTI, Finland           N62 49  E 26  1     2.5      ?          #
PEREVOZ, Russia              N59  0  E116  0     0.086    ?          Resempling known craters.
PERLOYA, Lithuania           N ?     E ?          ?       ?
PFAHLDORF BASIN, Germany     N48 57  E 11 22     2.5      ?          Several craters.
PIELPAJÄRVI, Finland         N68 57  E 27  6     1.5      ?          Check: No evidences?
PIPMUACAN WEST, Canada       N49 34  W 70 17    20.0      ?          With Pipmuacan East? Pluton?
PIPMUACAN EAST, Canada       N49 28  W 69 39    16.0      ?          With Popmuacan West? Pluton?
POPLAR BAY, Canada           N50 22  W 95 47     3.0      ?
POROJÄRVI, Russia            N69 20  E 29 47     4.5      ?          #
PUULA, Finland               N61 59  E 26 35    38.0 <1890.0         #
PYHÄNIEMI, Finland           N61  4  E 25 27     2.0      ?          # Check: No evidences.
PÖYRISJÄRVI, Finland         N68 44  E 23 53     8.5      ?          # 16km?
REITZ RING, South Africa     S                 400.0      ?          NW rim of Witwatersrand basin.
REVOFJÄRDEN, Finland         N63 16  E 21 21     3.4      ?          #
RIGA, Latvia                 N57  0  E 24 12     0.3      ?
RISTIJÄRVI, Finland          N61 10  E 26  1     1.3      ?          Check: Non-impact structure?
ROGOZHINO, Russia            N52 30  E 39 30     0.016    ?
ROINE, Finland               N61 22  E 24  8     7.5      ?          #
ROSBACH, Germany             N50 18  E  8 41     2.3    50-300
ROSE, USA                    N       W            ?       ?
ROTCHEGDA, Russia            N62 30  E 43 30     0.01     ?
RYAZAN´, Russia              N54     E 40        0.02     ?
RÄÄKKYLÄ. Finland            N62 20  E 29 33     4.0      ?          #
SAAL, Germany                N48 48  E 11 58      ?       ?          Associated with the Ries?
SAINT GEORGES BAY, Argentina                      ?       ?
ST. MAGNUS BAY, Great Brit.  N60 25  W  1 34    11.0      ?          A sea bay.
SAMBOROMBON BAY, Argentina                        ?       ?
SAULT-AUX-COCHONS, Canada    N49 17  W 70 30      ?       ?
SAUSTHAL, Germany            N48 58  E 11 52     1.0      ?
SAUTUSJÄRVI, Sweden          N67 54  E 20 54    10.0      Prot.
SAVONOSKI, USA               N58 32  W154 56     0.5      ?
SCHLITZER KAUTEN, Germany    N50 37  E  9 35     0.007    ?
SEA OF JAPAN, Asia                                ?       ?
SEMSIYYÂT DOME, Mauritania   N21  6  W 11 50     5.0      ?          Similar than Richât Dome.
SEVERO-KOUNRADSKAYA, Kazakh. N47  9  E 75 14    15.0      ?          Dist. rocks with magn. anom.
SEVETIN, Czech Republic      N       E            ?       ?          Not an impact structure?
SILVERGOPEN, Finland         N62 5?  E 21 13     0.06   ~0.0075      Check: Non-impact structure?
SKELETON LAKE, Canada        N45 16  W 79 27     3.5   570-510?
SOMPIOJÄRVI, Finland         N68 18  E 27 18     3.0 <1770.0         Check: No evidences.
SOPPANANSELKÄ, Finland       N66  1  E 27 11     5.0      ?          #
SOTKAJÄRVI, Finland          N68 19  E 23 17     1.8      ?          # Check: No evidences.
S. ATLANTIC G.A., Argentina  S       W         250.0     P/T event?  Anomaly on Patagonia shelf
S. BALKHASH LAKE, Kazakhstan N45     E 75 30   380.0      ?          Hardly.
SOUTH LIBYA, Libya           N21 21  E 20 45     3.0      ?          From SRL-data.
SPORNYI, Russia              N51 48  E139  0      ?       ?          Several small depressions.
SREDNEKAN, Russia            N62 30  E152 42     0.05     ?          A lake.
STENSJÖN, Sweden             N59 18  E 18 24     0.5      ?          
STORA VÄRTAN, Sweden         N59 16  E 18  7     2.0  >540.0         
STORDAMMEN, Sweden           N60  6  E 18 18     4.5      ?          
STYRAN, Sweden               N59  6  E 18  0     1.5      ?          
STURGUT, Russia              M61 12  E 73 36     0.05     ?          A conical depression.
SUURIJÄRVI, Finland          N62 28  E 29  5     2.7      ?          # Check: No evidences.
SVETLOYAR, Russia            N56 42  E 45  6     0.45     ?          A lake.
SVYATOE OZERO, Russia        N55 48  E 38 30     0.1      ?          A lake.
SYM, Russia                  N60 24  E 88 24     0.08     ?
SZILVÁGY-PATKÓ, Hungary      N46 43  E 16 38     0.5    >0.01        7 Sep 456 AD?
SYNSIÄNLAHTI, Finland        N61 58  E 25 47     3.5      ?          # Check: No evidences.
SÄLEVÄ, Finland              N63 30  E 27 53     2.0      ?          # Check: No evidences.
SÄLEVÄ N, Finland            N63 32  E 25 53     4.0      ?          # Check: Non-impact structure?
TAGIL, Russia                N57 48  E 60  0     0.25     ?          An oval lake.
TALKUDUKSK, Kazakhstan       N46 24  E 73 10     0.5      ?
TEMIMICHÂT-GHALLAMAN, Mauri. N24 15  W  9 39     0.5      ?          Explosion crater.
TENGIZ, Kazakhstan           N52     E 70      350.0      ?          Hardly.
   The Firth: see Firth
TERHAZZA, Mali               N23  0  W  6  0     1.0      ?          ASTER research
TIBESTI, Chad                N21 30  E 17 30    18.0      ?
TIERRA DEL FUEGO, Argentina                       ?       ?          T. D. F. - Falkland Island.
TIILIKKAJOKI, Finland        N63 37  E 28 11    13.0      ?          Check: Non-impact structure? 
TIKSI, Russia                N71 42  E128 24     0.1      ?
TINDOUF, Morocco                                 3.0      ?
TJEGELVAS, Sweden            N66 30  E 17  0     3.5      ?          
TOBYS´, Russia               N63 18  E 53  6     0.05     ?          13 depressions and lakes.
TONLE SAP, Cambodia          N12 48  E104  7    35x100    ?          Propoced origin of tektites
TRAFALGAR BAY, Canada        N48 19  W 90 39      ?       ?
TSEPOCHKINO, Russia          N57 12  E 50  0     0.08     ?          Several depressions.
TVERDOVO, Russia             N53 12  E 34 42     0.1      ?          A lake.
TYUPTYALIR, Russia           N69 54  E124 54     0.3      ?          Two lakes.
TÄHTINIEMI, Finland          N61 51  E 26 47     6.0 <1890.0         #
UKONSELKÄ, Finland           N62  8  E 24 28     3.5      ?          #
UNDEN, Sweden                N58 48  E 14 24     9.0      ?          
UNGAVA BAY, Canada           N60     W 67 20      ?       ?          A bay.
UNNAMED LAKE, Canada         N64 58  W 87 41      ?       ?
UPPLAND, Sweden              N60  0  E 17  0   320.0  1800-1500      
UST´-OZERNYI, Russia         N58 54  E 87 42     0.07     ?
UST´-VIKHOREVO, Russia       N56 42  E101 24     0.01     ?          A conical depression.
UZHUR, Russia                N55 12  E 90 18      ?       ?
VAHVAJÄRVI, Finland          N61 39  E 26 41     7.5      ?          #
VALAAM, Russia               N61 22  E 31  3     7.0      ?          #
VALGA, Estonia, Latvia       N       E         200.0      ?          
VARA, Sweden                 N58 24  E 13  0    30.0      ?      
VASIKKASELKÄ, Finland        N69  7  E 28 14     9.5      ?          #
VIINIJÄRVI, Finland          N62 44  E 29 18    19.0 <2500.0         # Uplifted Archaean rocks?
VINOGRADOVO, Russia          N55 30  E 38  0     0.15     ?          A depression.
VIRMASVESI, Finland          N62 50  E 26 54    12.0      ?          #
VITIM, Russia                N53 30  E112 30     0.2      ?          A lake.
VOSTOCHNOYE, Russia          N53 30  E 68 12     0.2      ?          Crater with a lake.
VOYEVODSKOYE, Russia         N53 48  E 85 36     0.04     ?          Several conical depr.
VUOTJÄRVI, Finland           N63  8  E 28 19    10.0      ?          #
VÄSTLANDSJÖN, Sweden         N59 42  E 16  0     3.0      ?          
WATTERSON LAKE, Canada       N65 13  W 99 23      ?       ?
WAYOMBO, Surinam             N 5 25  W 56  5    none?     ?          Witnessed impact!?
WEABLEAU, USA                N       W            ?       ?          
WEDDELL SEA, Antarctica      S                    ?       ?
WILBARGER, USA               N34 10  W 99 13      ?       ?          An uptrust.
WILKENS LAND, Antarctica     S71  0  E140  0   240.0      ?          Negative gravitional anom.
WILLENHOFEN, Germany         N49 14  E 11 42      ?       ?          Several small craters.
ZAMOSC, Poland               N       E            ?       ?          Impact melt?
ZAPADNO-AKKUDUKSK, Kazakhst. N47  6  E 73 41    18.0      ?
ZAPADNO-KARKARALINSK, Kazak. N49 25  E 75  0     0.2      ?
ZHUAN-TOBE, Kazakhstan       N47 48  E 73 51    15.0      ?
ÅLAAPE, Sweden               N67 42  E 19 12    10.0      ?          
ÖNSKASJÖN, Sweden            N63 42  E 18 42     4.0      ?          
ÖSMAREN, Sweden              N60  0  E 18 30     2.5      ?          
#) These structures are from my list of circular features of Finland e.g. possible 
impact structres. However, if even one of those (there is 48 of them) will prove to be
an impact structure I would be a happy man. My original list is longer, but I choose
only best looking structures for this list. The #-character is used 
also in discredided structures list.
Check: -means that I or somebody else has checked the structure. "No evidences" -means
that no evidences for or agains was found. "Non-impact structure" -means that found 
outcrops or other good indications shows that there is propably no impact structure, 
but evidences are not yet good enough (studied or in quality) to discredit the structure.

POSSIBLE impact structures from X-SAR images

The next list of probable and possible impact structures from X-SAR images is based on
"Meteoric craters discovery by means of X-SAR images examination" -articles (2 parts) 
by Roberto Gorelli, who kindly posted the article to me. Article has been published 
in IMO's WGN.-magazine. All X-SAR structures with coordinates and diameters are presented
in those articles. Numbers after X-SAR -name are from articles too. Other structures are
only mentioned in the articles. Structure number 16 seems to be Deep Bay impact structure,
which is known for a long time.
Structures 25-31 were presented in a shorter article published in Meteorite!-magazine. In that
article 10 structures were presented. 7 of them were new and 3 of them were presented already 
in WGN article mentioned above.
Readers should remember that origin of these structures is not confirmed by field studies,
which makes it highly possible that many (most?) of these are not extraterestrial in origin.

??, South Korea              N       E          13.0
X-SAR 1, Libya               N31 18  E 15 39    16.74  <100           possible
X-SAR 2, Sudan               N17  7  E 33 58    60.3   <100           probable
X-SAR 3, Sudan               N18 56  E 32 45     0.9     <1           possible
X-SAR 4, Madagascar          S21 22  E 46 38     0.855  <10           possible
X-SAR 5, Madagascar          S21  5  E 46 47     2.47   <10           probable
X-SAR 6A, Bulgan, Mongolia   N48 38  E104 18     2.576  <10           proved?
X-SAR 6B, Bulgan, Mongolia   N48 38  E104 15     2.48   <10           probable
X-SAR 7A, Mauritania         N19 23  W 13 47     1.315  <10           proved?
X-SAR 7B, Mauritania         N19 20  W 13 46     1.878  <10           possible
  X-SAR 8: see El-Mirba in list of suggested or possible structures
X-SAR 9A, Manitoba, Canada   N58 56  W 99 18     3.798 >250           sure? (5.127 km?)
X-SAR 9B, Manitoba, Canada   N58 56  W 99 26     2.468     ?          possible
X-SAR 10, Manitoba, Canada   N54 49  W100 22     4.395 <250           probable
X-SAR 11, Arizona, USA       N32 23  W112 55     1.8     <1.1         possible (1.907x1.714km)
X-SAR 12A, Egypt             N22 52  E 27  6     3.951  <10           possible 
X-SAR 12B, Egypt             N22 53  E 27  0     2.446  <10           possible
X-SAR 12C, Egypt             N22 52  E 27  5     0.753  <10           possible
X-SAR 12D, Egypt             N22 53  E 27  5     1.317  <10           possible
X-SAR 12E, Egypt             N22 53  E 27  5     1.129  <10           possible
X-SAR 13, Manitoba, Canada   N49 47  W 96 26     5.741   <5           sure?
X-SAR 14A, Namibia           S27 37  E 16 11     3.77     3.7 ±0.3    sure? "Dune Crater"
X_SAR 14B, Namibia           S27 39  E 16 12     0.570    3.7 ±0.3    possible
X-SAR 15, Bangladesh         N21 29  E 92  4     4.142  <50           possible
  X-SAR 16 = Deep Bay
X-SAR 17, Manitoba, Canada   N59  3  W 97 43     1.304  <50           possible
X-SAR 18, Manitoba, Canada   N54 46  W 99 39     0.950  <10           possible
X-SAR 19, Manitoba, Canada   N54 34  W 99 56     1.237  <10           possible
X-SAR 20, Saskatch., Canada  N55 52  W107 47     0.575  <10           possible
X-SAR 21, Saskatch., Canada  N55 51  W107 59     1.341  <10           possible
X-SAR 22, Manitoba, Canada   N49 50  W 95 39     5.741  <50           possible
X-SAR 23, Manitoba, Canada   N58 36  W101 27     2.121  <250          possible
X-SAR 24A, Chubut, Argentina S42 17  W 67 56     3.657  <25           probable
X-SAR 24B, Chubut, Argentina S42 17  W 67 59     2.063  <25           probable
X-SAR 25, Iran               N37 57  E 55 20     4.5    <10
X-SAR 26A, Patag., Argentina S50 50  W 70 38     3.0    <5
X-SAR 26B, Patag., Argentina S50 45  W 70 43     0.9    <5
X-SAR 26C, Patag., Argentina S50 47  W 70 50     1.3    <5
X-SAR 27, Ontario, Canada    N50 50  W 93 28     7.2    <250
X-SAR 28, Saskatch., Canada  N56 34  W110 34     7.5    250
X-SAR 29, Saskatch., Canada  N56 35  W111  3     1.4    <10
X-SAR 30, Alberta, Canada    N56 23  W115 23     5.7    <10
X-SAR 31, Alberta, Canada    N56 25  W114 40     3.0    <25
??, Yemen                    N       E           0.8                  

DISCREDITED sturctures

This is a list of structures once succested to be impact in origin, but other explanation seems
more acceptable. However, some of these may still be impact structures (for example Manson
impact structure was discredited in Fourth Catalogue of Meteorites).
BANGUI, Africa               N 6  0  W  0 55   800.0   E. Precamb    Not impact structure?
BASS STRAIT, Australia       S40  0  E146  0      ?       ?          Discredited
BISHOFTU, Ethiopia           N 8 45  E 39  0      ?       ?          14 craters. Volcanic.
CAROLINA BAYS, USA           N       W            ?       ?          Discredited
CONFOLENT, France            ?       ?            ?       ?          Discredited
ELEGANTE, Mexico             N32 40  W112 55      ?       ?          Discredited
CRESTONE, USA                N37 54  W105 39      ?       ?          Discredited
COLLUMA, Bolivia             S18 32  W 68 30      ?       ?          Collapsed dome?
DUCKWATER, USA               N38 42  W115 42     0.075    ?          Limestone sink?
EL MOUILAH, Algeria          N33 51  E  2  3     5.0      ?          Collapse structure.
EYRE PENINSULA, Australia    S34     E136         ?       ?          Sink holes and coll. caverns.
FRANKTOWN, Canada            N45  3  W 76  4      ?       ?          Remains of old lake.
GWARKUH, Iran                N28 30  E 60 40      ?       ?
HÉRAULT, France              N43 32  E  3  8     0.22     ?          Six crater-like structures.
HUDSON BAY, Canada           N57 54  W 80  2   220.0      ?
HUNGARUAN PLAIN, Hungary     N47     E 21         ?       ?
LAGUNA GUATAVITA, Colombia   N 4 59  W 73 47     0.7      ?          Collapsed salt structure?
LAKE ST. JOHN, Canada        N48 37  W 72         ?       ?
LESSER ANTILLES, West Indies                   950.0      ?          Volcanic island chain.
LIBYAN DESERT CRATERS, Libya N22 18  E 25 30     0.8      ?          Seven volcanic craters.
LUONTERI, Finland            N61 35  E 27 51    10.0      ?          # Volcanic intrusion.
MACAMIC LAKE, Canada         N48 52  W 79  1     1.6      ?          
MALHA, Sudan                 N15  6  E 26 15      ?       ?          Volcanic explosion crater.
MAZOULA, Algeria             N28 24  E  7 19     0.8      ?          A fossil reef or salt diapir.
MERNA, USA                   N41 27  W 99 58     1.6     0.003       Wind erosion?
NEBIEWALE CALDERA, Ghana     N10 35  W  1 40      ?       ?          A caldera.
NORTH CASPIAN SEA, Kazakstan N44     E 53      800.0      ?          A sea.
PANAMINT, USA                N36  6  W117 22     0.075    ?          Solution collapse pit.
RANDECKER MAAR, Germany                           ?       ?
SWAN VALLEY, USA                                 0.08     ?          3 collapsed limestone str.
TIFFIN, USA                  N41 48  W 91 40     0.03     ?          Swirl pit of flood.
UBEHEBE, USA                 N36 59  W117 32     0.07     ?          Explosion craters.
UDJEI BOWL, Russia           N53 45  E 93 10      ?       ?
WINKLER, USA                 N39 29  W 96 49     0.8      ?
ÄNGSKÄRFJÄRDEN, Finland      N60 28  E 21  0     6.5  1770-1800      =Åva. Volcanic intrusion.
© Jarmo Moilanen
Materiaalin käyttäminen ilman lupaa kielletty! Any use of material without permission is forbidden!