| 9 Feb 2003 |
List of probable and possible impact structures of the Worldin alphabetical order |
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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 structuresBIZENEUILLE, 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 layersThese 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 structuresThese 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 structuresIt 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 imagesThe 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 sturcturesThis 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. |
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