Late Eocene impact craters and impactoclastic layers-An overview

Special Paper of the Geological Society of America

Volumn 452, Issue , 2009, Pages 17-26

  Koeberl, Christian ^a,b  

^a UNIVERSITY OF VIENNA   (Austria)

^b Osservatorio Geologico di Coldigioco   (Italy)

Author keywords

Chesapeake bay crater; Ejecta; Late Eocene impacts; Popigai crater; Tektites

Indexed keywords

SUBMARINE GEOLOGY;

CHESAPEAKE BAY; EJECTA; LATE EOCENE; POPIGAI CRATER; TEKTITES;

DETERIORATION;

ASTEROID; BOLIDE; COMET; CRATER; EJECTA; EOCENE; MARINE SEDIMENT; TEKTITE;

CHESAPEAKE BAY; POPIGAI CRATER; RUSSIAN FEDERATION; UNITED STATES;

SPHERULES;

EID: 74949119698     PISSN: 00721077     EISSN: None     Source Type: Book Series    
DOI: 10.1130/2009.2452(02)     Document Type: Conference Paper

References (89)

1. Albin, E., and Wampler, J.M., 1996, New potassium-argon ages for georgiaites and the Upper Eocene Dry Branch Formation (Twiggs Clay Member): Inferences about tektite stratigraphic occurrence: Lunar and Planetary Science, v. 27, p. 5-6.
2. Albin, E.F., Norman, M.D., and Roden, M., 2000, Major and trace element compositions of georgiaites: Clues to the source of North American tektites: Meteoritics & Planetary Science, v. 35, p. 795-806.
3. Bodiselitsch, B., Montanari, A., Koeberl, C., and Coccioni, R., 2004, Delayed climate cooling in the late Eocene caused by multiple impacts: High resolution geochemical studies at Massignano, Italy: Earth and Planetary Science Letters, v. 223, p. 283-302, doi: 10.1016/j.epsl.2004.04.028. (Pubitemid 38889297)
4. Bottomley, R., Grieve, R., York, D., and Masaitis, V., 1997, The age of the Popigai impact event and its relation to events at the Eocene/Oligocene boundary: Nature, v. 388, p. 365-368, doi: 10.1038/41073. (Pubitemid 27334811)
5. Brown, R.E., Koeberl, C., Montanari, A., and Bice, D.M., 2009, this volume, Evidence for a change in Milankovitch forcing caused by extraterrestrial events at Massignano, Italy, Eocene-Oligocene boundary GSSP, in Koeberl , C., and Montanari, A., eds., The Late Eocene Earth-Hothouse, Icehouse, and Impacts: Geological Society of America Special Paper 452, doi: 10.1130/2008.2452(08).
6. Cande, S.C., and Kent, D.V., 1995, Revised calibration of the geomagnetic polarity time scale for the Late Cretaceous and Cenozoic: Journal of Geophysical Research, v. 100, p. 6093-6095, doi: 10.1029/94JB03098.
7. Clymer, A.K., Bice, D.M., and Montanari, A., 1996, Shocked quartz from the late Eocene: Impact evidence from Massignano, Italy: Geology, v. 24, p. 483- 486, doi: 10.1130/0091-7613(1996)024<0483:SQFTLE>2.3.CO;2.
8. Coccioni, R., Marsili, A., Montanari, A., Bellanca, A., Neri, R., Bice, D.M., Brinkhuis, H., Church, N., Macalady, A., McDaniel, A., Deino, A., Lirer, F., Sprovieri, M., Maiorano, P., Monechi, S., Nini, C., Nocchi, M., Pross, J., Rochette, P., Sagnotti, L., Tateo, F., Touchard, Y., Van Simaeys, S., and Williams, G.L., 2008, Integrated stratigraphy of the Oligocene pelagic sequence in the Umbria-Marche basin (northeastern Apennines, Italy): A potential global stratotype section and point (GSSP) for the Rupelian/ Chattian boundary: Geological Society of America Bulletin, v. 120, p. 487-511, doi: 10.1130/B25988.1. (Pubitemid 351756653)
9. Collins, G.S., and Wünnemann, K., 2005, How big was the Chesapeake Bay impact? Insight from numerical modeling: Geology, v. 33, p. 925-928, doi: 10.1130/G21854.1. (Pubitemid 41805457)
10. Coxall, H.K., Wilson, P.A., Pälike, H., Lear, C.H., and Backman, J., 2005, Rapid stepwise onset of Antarctic glaciation and deeper calcite compensation in the Pacific Ocean: Nature, v. 433, p. 53-57, doi: 10.1038/nature03135. (Pubitemid 40101140)
11. Dence, M.R., Robertson, P.B., and Wirthlin, R.L., 1974, Coesite from the Lake Wanapitei crater, Ontario: Earth and Planetary Science Letters, v. 22, p. 118-122, doi: 10.1016/0012-821X(74)90071-5.
12. Deutsch, A., and Koeberl, C., 2006, Establishing the link between the Chesapeake Bay impact structure and the North American tektite strewn field: The Sr-Nd isotopic evidence: Meteoritics & Planetary Science, v. 41, p. 689-703.
13. D'Hondt, S.L., Keller, G., and Stallard, R.F., 1987, Major element compositional variation within and between different late Eocene microtektite strewn fields: Meteoritics, v. 22, p. 61-79.
14. Dressler, B.O., Crabtree, D., and Schuraytz, B.C., 1997, Incipient melt formation and devitrification at the Wanapitei impact structure, Ontario, Canada: Meteoritics & Planetary Science, v. 32, p. 249-258.
15. Evans, N.J., Gregoire, D.C., Grieve, R.A.F., Goodfellow, W.D., and Veizer, J., 1993, Use of platinum-group elements for impactor identification: Terrestrial impact craters and Cretaceous-Tertiary boundary: Geochimica et Cosmochimica Acta, v. 57, p. 3737-3748, doi: 10.1016/0016-7037 (93)90152-M.
16. Farley, K.A., 2009, this volume, Late Eocene and late Miocene cosmic dust events: Comet showers, asteroid collisions, or lunar impacts?, in Koeberl, C., and Montanari, A., eds., The Late Eocene Earth-Hothouse, Icehouse, and Impacts: Geological Society of America Special Paper 452, doi: 10.1130/2009.2452(03).
17. Farley, K.A., Montanari, A., Shoemaker, E.M., and Shoemaker, C.S., 1998, Geochemical evidence for a comet shower in the late Eocene: Science, v. 280, p. 1250-1253, doi: 10.1126/science.280.5367.1250. (Pubitemid 28269616)
18. Farley, K.A., Vokrouhlicky, D., Bottke, W.F., and Nesvorny, D., 2006, A late Miocene dust shower from the break-up of an asteroid in the main belt: Nature, v. 439, p. 295-297, doi: 10.1038/nature04391. (Pubitemid 43128848)
19. Glass, B.P., 1989, North American tektite debris and impact ejecta from DSDP Site 612: Meteoritics, v. 24, p. 209-218.
20. Glass, B.P., 1990, Chronostratigraphy of Upper Eocene microspherules: Comment and Reply: Palaios, v. 5, p. 387-390, doi: 10.2307/3514897.
21. Glass, B.P., 2002, Upper Eocene impact ejecta/spherule layers in marine sediments: Chemie der Erde, v. 62, p. 173-196, doi: 10.1078/0009-2819-00017.
22. Glass, B.P., and Burns, C.A., 1987, Late Eocene crystal-bearing spherules: Two layers or one?: Meteoritics, v. 22, p. 265-279.
23. Glass, B.P., and Koeberl, C., 1999a, Ocean Drilling Project Hole 689B spherules and Upper Eocene microtektite and clinopyroxene-bearing spherule strewn fields: Meteoritics & Planetary Science, v. 34, p. 197-208.
24. Glass, B.P., and Koeberl, C., 1999b, North American microtektites in the Indian Ocean? (abstract): Meteoritics & Planetary Science, v. 34, p. A42-A43.
25. 4 polymorph in naturally occurring shock-metamorphosed zircons: Geology, v. 29, p. 371-373, doi: 10.1130/0091-7613(2001)029<0371:DOHPZP>2. 0.CO;2.
26. Glass, B.P., and Wu, J., 1993, Coesite and shocked quartz discovered in the Australasian and North American microtektite layers: Geology, v. 21, p. 435-438, doi: 10.1130/0091-7613(1993)021<0435:CASQDI>2.3.CO;2.
27. Glass, B.P., and Zwart, M.J., 1979, North American microtektites in Deep Sea Drilling Project cores from the Caribbean Sea and Gulf of Mexico: Geological Society of America Bulletin, v. 90, p. 595-602, doi: 10.1130/0016-7606(1979) 90<595:NAMTID>2.0.CO;2.
28. Glass, B.P., Burns, C.A., Crosbie, J.R., and DuBois, D.L., 1985, Late Eocene North American microtektites and clinopyroxene-bearing spherules, in Proceedings of the 16th Lunar and Planetary Science Conference, Part 1: Journal of Geophysical Research, v. 90, supplement, p. D175-D196.
29. 39 Ar laser-probe dating of North American tektite fragments from Barbados and the age of the Eocene-Oligocene boundary: Chemical Geology, v. 5, p. 181-186.
30. Glass, B.P., Koeberl, C., Blum, J.D., and McHugh, C.M.G., 1998, Upper Eocene tektite and impact ejecta layer on the continental slope off New Jersey: Meteoritics & Planetary Science, v. 33, p. 229-241.
31. Glass, B.P., Huber, H., and Koeberl, C., 2004a, Geochemistry of Cenozoic microtektites and clinopyroxene-bearing spherules: Geochimica et Cosmochimica Acta, v. 68, p. 3971-4006, doi: 10.1016/j.gca.2004.02.026. (Pubitemid 39547032)
32. Glass, B.P., Liu, S.B., and Montanari, A., 2004b, Impact ejecta in Upper Eocene deposits at Massignano, Italy: Meteoritics & Planetary Science, v. 39, p. 589-597.
33. Goderis, S., Tagle, R., and Claeys, P., 2007, Current situation on the characterization of the late Eocene impact structures using platinum group element (PGE) ratios, in Montanari, A., and Koeberl, C., eds., "The Late Eocene Earth: Hothouse, Icehouse, and Impacts": Ancona, Italy, Penrose Conference Abstract volume, p. 27-28.
34. Grieve, R.A.F., 1975, Petrology and chemistry of the impact melt at Mistastin Lake crater, Labrador: Geological Society of America Bulletin, v. 86, p. 1617-1629, doi: 10.1130/0016-7606(1975)86<1617:PACOTI>2.0.CO;2.
35. Grieve, R.A.F., 2006, Impact Structures in Canada: St. Johns, Canada, Geological Association of Canada, 210 p.
36. Grieve, R.A.F., and Ber, T., 1994, Shocked lithologies at the Wanapitei impact structure, Ontario, Canada: Meteoritics, v. 29, p. 621-631.
37. Harris, R.S., Roden, M., Schroeder, P., Holland, S., Duncan, M., and Albin, E., 2004, Upper Eocene impact horizon in east-central Georgia: Geology, v. 32, p. 717-720, doi: 10.1130/G20562.1. (Pubitemid 39115706)
38. Hazel, J.E., 1989, Chronostratigraphy of Upper Eocene microspherules: Palaios, v. 4, p. 318-329, doi: 10.2307/3514556.
39. Hilgen, F.J., and Kuiper, K.F., 2009, this volume, A critical evaluation of the numerical age of the Eocene-Oligocene boundary, in Koeberl, C., and Montanari, A., eds., The Late Eocene Earth-Hothouse, Icehouse, and Impacts: Geological Society of America Special Paper 452, doi: 10.1130/2009.2452(09).
40. Hyland, E., Murphy, B., Varela, P., Marks, K., Colwell, L., Tori, F., Monechi, S., Cleaveland, L., Brinkhuis, H., van Mourik, C.A., Coccioni, R., Bice, D., and Montanari, A., 2009, this volume, Integrated stratigraphy and astrochronologic calibration of the Eocene-Oligocene transition in the Monte Cagnero section (northeastern Apennines, Italy): A potential parastratotype for the Massignano GSSP, in Koeberl, C., and Montanari, A., eds., The Late Eocene Earth-Hothouse, Icehouse, and Impacts: Geological Society of America Special Paper 452, doi: 10.1130/2009.2452(19).
41. Katz, M.E., Miller, K.G., Wright, J.D., Wade, B.S., Browning, J.V., Cramer , B.S., and Rosenthal, Y., 2008, Stepwise transition from greenhouse to icehouse climates: Nature Geoscience, v. 1, p. 329-334, doi: 10.1038/ngeo179.
42. Keller, G., D'Hondt, S.L., Orth, C.J., Gilmore, J.S., Oliver, P.Q., Shoemaker, E.M., and Molina, E., 1987, Late Eocene impact microspherules: Stratigraphy, age, and geochemistry: Meteoritics, v. 22, p. 25-60.
43. Kettrup, B., Deutsch, A., and Masaitis, V.L., 2003, Homogeneous impact melts produced by a heterogeneous target? Sr-Nd isotopic evidence from the Popigai crater, Russia: Geochimica et Cosmochimica Acta, v. 67, p. 733- 750, doi: 10.1016/S0016-7037(02)01143-2. (Pubitemid 36199334)
44. Koeberl, C., 1986, Geochemistry of tektites and impact glasses: Annual Review of Earth and Planetary Sciences, v. 14, p. 323-350, doi: 10.1146/annurev.ea.14.050186.001543.
45. Koeberl, C., 1994, Tektite origin by hypervelocity asteroidal or cometary impact: Target rocks, source craters, and mechanisms, in Dressler, B.O., Grieve, R.A.F., and Sharpton, V.L., eds., Large Impacts and Planetary Evolution: Geological Society of America Special Paper 293, p. 133-151.
46. Koeberl, C., 2007, The geochemistry and cosmochemistry of impacts, in Davis, A., ed., Treatise of Geochemistry (Online Edition), Volume 1: Amsterdam, Elsevier, p. 1.28.1-1.28.52, doi: 10.1016/B978-008043751-4/00228-5.
47. Koeberl, C., and Glass, B.P., 1988, Chemical composition of North American microtektites and tektite fragments from Barbados and DSDP Site 612 on the continental slope off New Jersey: Earth and Planetary Science Letters, v. 87, p. 286-292, doi: 10.1016/0012-821X(88)90016-7.
48. Koeberl, C., Poag, C.W., Reimold, W.U., and Brandt, D., 1996, Impact origin of Chesapeake Bay structure and the source of North American tektites: Science, v. 271, p. 1263-1266, doi: 10.1126/science.271.5253.1263.
49. Kyte, F.T., and Liu, S., 2002, Iridium and spherules in late Eocene impact deposits: Houston, Texas, Lunar and Planetary Institute, Lunar and Planetary Science, v. 33, abs. 1981 (CD-ROM).
50. Kyte, F.T., Shukolyukov, A., Hildebrand, A.R., and Lugmair, G.W., 2004, Initial Cr-isotopic and iridium measurements of concentrates from Late-Eocene cpx-spherule deposits: Houston, Texas, Lunar and Planetary Institute, Lunar and Planetary Science, v. 35, abs. 1824 (CD-ROM).
51. Langenhorst, F., 1996, Characteristics of shocked quartz in late Eocene impact ejecta from Massignano (Ancona, Italy): Clues to shock conditions and source crater: Geology, v. 24, p. 487-490, doi: 10.1130/0091-7613(1996) 024<0487:COSQIL>2.3.CO;2.
52. Lazorek, M., Eyles, N., Eyles, C., Doughty, M., L'Heureux, E., and Milkereit, B., 2006, Late Quaternary seismo-stratigraphy of Lake Wanapitei, Sudbury, Ontario, Canada: Arguments for a possible meteorite impact origin: Sedimentary Geology, v. 192, p. 231-242, doi: 10.1016/j.sedgeo. 2006.04.010.
53. Lee, S.R., Horton, J.W., and Walker, R.J., 2006, Osmium-isotope and platinum-group element systematics of impact melt rocks, Chesapeake Bay impact structure, Virginia, USA: Meteoritics & Planetary Science, v. 41, p. 819-833.
54. L'Heureux, E., Ugalde, H., Milkereit, B., Boyce, J., Morris, W., Eyles, N., and Artemieva, N., 2005, Using vertical dikes as a new approach to constraining the size of buried craters: An example from Lake Wanapitei, Canada, in Kenkmann, T., Hörz, F., and Deutsch, A., eds., Large Meteorite Impacts VolumeIII: Geological Society of America Special Paper 384, p. 43-50.
55. Liu, S., Papanastassiou, D.A., Ngo, H.H., and Glass, B.P., 2006, Sr and Nd analyses of Upper Eocene spherules and their implications for target rocks: Meteoritics & Planetary Science, v. 41, p. 705-714.
56. Liu, S., Glass, B.P., Kyte, F.T., and Bohaty, S.M., 2009, this volume, The Upper Eocene clinopyroxene-bearing spherule layer: New sites and discovery of coesite and shocked quartz, in Koeberl, C., and Montanari, A., eds., The Late Eocene Earth-Hothouse, Icehouse, and Impacts: Geological Society of America Special Paper 452, doi: 10.1130/2009.2452(04).
57. Mak, E.K.C., York, D., Grieve, R.A.F., and Dence, M.R., 1976, The age of the Mistastin Lake crater, Labrador, Canada: Earth and Planetary Science Letters, v. 31, p. 345-357, doi: 10.1016/0012-821X(76)90116-3.
58. Marchand, E., and Whitehead, J., 2002, Statistical Evaluation of Compositional Differences between Upper Eocene Impact Ejecta Layers: Mathematical Geology, v. 34, p. 555-572.
59. Miller, K.G., Berggren, W.A., Zhang, J., and Palmer-Julson, A.A., 1991, Biostratigraphy and isotope stratigraphy of Upper Eocene microtektites at Site 612: How many impacts?: Palaios, v. 6, p. 17-38, doi: 10.2307/3514951.
60. Miller, K.G., Wright, J.D., Katz, M.E., Wade, B.S., Browning, J.V., Cramer, B.S., and Rosenthal, Y., 2009, this volume, Climate threshold at the Eocene-Oligocene transition: The Antarctic ice sheet influences on ocean circulation, in Koeberl, C., and Montanari, A., eds., The Late Eocene Earth-Hothouse, Icehouse, and Impacts: Geological Society of America Special Paper 452, doi: 10.1130/2009.2452(11).
61. Montanari, A., and Koeberl, C., 2000, Impact Stratigraphy: Heidelberg, Springer, 364 p.
62. Montanari, A., Asaro, F., Michel, E., and Kennett, J.P., 1993, Iridium anomalies of late Eocene age at Massignano (Italy), and in ODP Site 689B (Maud Rise, Antarctica): Palaios, v. 8, p. 420-437, doi: 10.2307/3515017.
63. Ngo, H.H., Wasserburg, G.J., and Glass, B.P., 1985, Nd and Sr isotopic compositions of tektite material from Barbados and their relationship to North American tektites: Geochimica et Cosmochimica Acta, v. 49, p. 1479- 1485, doi: 10.1016/0016-7037(85)90297-2.
64. Obradovich, J.D., Snee, L.W., and Izett, G.A., 1989, Is there more than one glassy impact layer in the late Eocene?: Geological Society of America Abstracts with Programs, v. 21, no.6, p. A134.
65. Paquay, F.S., Ravizza, G.E., Dalai, T.K., and Peucker-Ehrenbrink, B., 2008, Determining chondritic impactor size from the marine osmium isotope record: Science, v. 320, p. 214-218, doi: 10.1126/science.1152860.
66. Pierrard, O., Robin, E., Rocchia, R., and Montanari, A., 1998, Extraterrestrial Ni-rich spinel in Upper Eocene sediments from Massignano, Italy: Geology, v. 26, p. 307-310, doi: 10.1130/0091-7613(1998)026<0307: ENRSIU>2.3.CO;2.
67. Poag, C.W., and Aubry, M.-P., 1995, Upper Eocene impactites of the U.S. East Coast: Depositional origins, biostratigraphic framework, and correlation: Palaios, v. 10, p. 16-43, doi: 10.2307/3515005.
68. Poag, C.W., Powars, D.S., Poppe, L.J., and Mixon, R.B., 1994, Meteoroid mayhem in Ole Virginny: Source of the North American tektite strewn field: Geology, v. 22, p. 691-694, doi: 10.1130/0091-7613(1994)022<0691:MMIOVS>2. 3.CO;2.
69. Poag, C.W., Koeberl, C., and Reimold, W.U., 2004, Chesapeake Bay Crater: Geology and Geophysics of a Late Eocene Submarine Impact Structure: Heidelberg, Springer, 522 p.
70. Sanfilippo, A., Riedel, W.R., Glass, B.P., and Kyte, F.T., 1985, Late Eocene microtektites and radiolarian extinctions on Barbados: Nature, v. 314, p. 613-615, doi: 10.1038/314613a0.
71. Shaw, H.F., and Wasserburg, G.J., 1982, Age and provenance of the target materials for tektites and possible impactites as inferred from Sm-Nd and Rb-Sr systematics: Earth and Planetary Science Letters, v. 60, p. 155-177, doi: 10.1016/0012-821X(82)90001-2.
72. Sherlock, S.C., Kelley, S.P., Parnell, J., Green, P., Lee, P., Osinski, G.R., and Cockell, C.S., 2005, Re-evaluating the age of the Haughton impact event: Meteoritics & Planetary Science, v. 40, p. 1777-1787.
73. Sherlock, S.C., Kelley, S.P., and Glazovskaya, L., 2006, A new age for the Logoisk impact structure, Berlarus and implications for the late Eocene comet shower, in First International Conference on Impact Cratering in the Solar System abstract volume: Noordwijk, Holland, European Space Agency (CD-ROM).
74. Stecher, O., Ngo, H.H., Papanastassiou, D.A., and Wasserburg, G.J., 1989, Nd and Sr isotopic evidence for the origin of tektite material from DSDP Site 612 off the New Jersey Coast: Meteoritics, v. 24, p. 89-98.
75. Storzer, D., and Wagner, G.A., 1971, Fission track ages of North American tektites: Earth and Planetary Science Letters, v. 10, p. 435-440, doi: 10.1016/0012-821X(71)90093-8.
76. Tagle, R., and Claeys, P., 2004, Comet or asteroid shower in the late Eocene?: Science, v. 305, p. 492, doi: 10.1126/science.1098481. (Pubitemid 38971333)
77. Tagle, R., and Claeys, P., 2005, An ordinary chondrite impactor for the Popigai crater, Siberia: Geochimica et Cosmochimica Acta, v. 69, p. 2877-2889, doi: 10.1016/j.gca.2004.11.024. (Pubitemid 40792469)
78. Thein, J., 1987, A tektite layer in Upper Eocene sediments of the New Jersey continental slope (Site 612, Leg 95), in Poag, C.W., Watts, A., et al., Initial Reports of the Deep Sea Drilling Project, Volume 95: Washington, D.C., U.S. Government Printing Office, p. 565-574.
79. Touchard, Y., Rochette, P., Aubry, M.-P., and Michard, A., 2003, High resolution magnetostratigraphic and biostratigraphic study of Ethiopian traps-related products in Oligocene sediments from the Indian Ocean: Earth and Planetary Science Letters, v. 206, p. 493-508, doi: 10.1016/ S0012-821X(02)01084-1.
80. Ugalde, H.A., L'Heureux, E., Lachapelle, R., and Milkereit, B., 2006, Measuring gravity on ice: An example from Wanapitei Lake, Ontario, Canada: Geophysics, v. 71, p. J23-J29.
81. Vonhof, H.B., and Smit, J., 1999, Late Eocene microkrystites and microtektites at Maud Rise (Ocean Drilling Project Hole 689B; Southern Ocean) suggest a global extension of the approximately 35.5 Ma Pacific impact ejecta strewn field: Meteoritics & Planetary Science, v. 34, p. 747-755.
82. Vonhof, H.B., Smit, J., Brinkhuis, H., Montanari, A., and Nederbragt, A.J., 2000, Global cooling accelerated by early late Eocene impacts?: Geology, v. 28, p. 687-690, doi: 10.1130/0091-7613(2000)28<687:GCABEL>2.0.CO;2.
83. Wei, W., 1995, How many impact-generated microspherule layers in the Upper Eocene?: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 114, p. 101-110, doi: 10.1016/0031-0182(95)00075-W.
84. Whitehead, J., Papanastassiou, D.A., Spray, J.G., Grieve, R.A.F., and Wasserburg, G.J., 2000, Late Eocene impact ejecta: Geochemical and isotopic connections with the Popigai impact structure: Earth and Planetary Science Letters, v. 181, p. 473-487, doi: 10.1016/S0012-821X(00)00225-9. (Pubitemid 30793021)
85. Whitehead, J., Grieve, R.A.F., and Spray, J.G., 2002, Mineralogy and petrology of melt rocks from the Popigai impact structure, Siberia: Meteoritics & Planetary Science, v. 37, p. 623-647.
86. Winzer, S.R., Lum, R.K.L., and Schuhmann, S., 1976, Rb, Sr and strontium isotopic composition, K/Ar age and large ion lithophile trace element abundances in rock and glasses from the Wanapitei Lake impact structure: Geochimica et Cosmochimica Acta, v. 40, p. 51-57, doi: 10.1016/ 0016-7037(76)90193-9.
87. Zähringer, J., 1963, K-Ar measurements of tektites, in Radioactive Dating: Proceedings IAEA Symposium: Vienna, International Atomic Energy Agency (IAEA), p. 289-305.
88. Zanazzi, A., Kohn, J.J., MacFadden, B.J., and Terry, D.O., Jr., 2007, Large temperature drop across the Eocene-Oligocene transition in central North America: Nature, v. 445, p. 639-642, doi: 10.1038/nature05551. (Pubitemid 46232882)
89. Zappalà, V., Cellino, A., Gladman, B.J., Manley, S., and Migliorini, F., 1998, Asteroid showers on Earth after family breakup events: Icarus, v. 134, p. 176-179, doi: 10.1006/icar.1998.5946. (Pubitemid 128346344)