Terrestrial impact melt rocks and glasses

Earth-Science Reviews

Volumn 56, Issue 1-4, 2001, Pages 205-284

  Dressler, B O ^a   Reimold, W U ^b  

^a 185 Romfield Circuit ^*  (Canada)

^b UNIVERSITY OF THE WITWATERSRAND   (South Africa)

Author keywords

Impact glass; Impact melt rock; Impact structures; Spherules; Tektites

Indexed keywords

COMET; ENVIRONMENTAL EFFECT; IMPACT STRUCTURE; MELT; METEORITE; PETROLOGY; TEKTITE;

AUSTRALIA; GERMANY; NORTH AMERICA; SOUTH AFRICA;

EID: 0035668410     PISSN: 00128252     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0012-8252(01)00064-2     Document Type: Article

References (332)

1. The meteorite craters at Henbury, central Australia
2. Controls on and geological setting of regional hydrothermal alteration within the Onaping Formation, footwall to the Errington and Vermilion base metal deposits, Sudbury Structure, Ontario
3. Dating of regional hydrothermal system induced by the 1850 Ma Sudbury impact event
4. The impact origin of the Morokweng ring structure, southern Kalahari, South Africa
5. A Ni- and PGE-enriched quartz norite impact melt complex in the Late Jurassic Morokweng impact structure, South Africa
6. A new type of melt rock and first evidence of shock deformation in plagioclase from the Vredefort impact structure, South Africa
7. Chemical fractionation of siderophile elements in impactites from Australian meteorite craters
8. The Green Member of the Onaping formation, the collapsed fireball layer of the Sudbury impact structure, Ontario, Canada
9. The Onaping Formation of the Sudbury Structure (Canada): An example of allochthonous impact breccias
10. Tektites
11. Tektite strewn fields
12. Die Forschungsbohrung Nördlingen 1973
13. Ergebnisse der Ries-Forschungsbohrung Struktur des Kraters und Entwicklung des Kratersees
14. The dioritic rocks at the Vredefort dome
15. Isotopic comparison of K/T boundary impact glass with melt rock from the Chicxulub and Manson impact structures
16. Shocked quartz and more; impact signatures in Cretaceous/Tertiary boundary clays
17. Origin and diagenesis of K/T impact spherules-from Haiti to Wyoming and beyond
18. Disruption of the Molopo drainage evolution by the Morokweng impact event
19. 39Argon dating of impact craters
20. The age of the Popigai impact event and its relation to events in the stratigraphic column
21. Rare earth elements in tektites
22. Partitioning of energy in hypervelocity impact against loose sand targets
23. Vredefort: A model for the anatomy of an astrobleme
24. The Foch thrust-Potchefstroom fault structural system, Vredefort, South Africa: A model for impact-related tectonoc movement over a pre-existing barrier
25. Near-surface seismic expression of the Chicxulub impact crater
26. Lithic clasts in the Vredefort Granophyre
27. The Waterberg basin: Its evolution, sedimentation and mineralization
28. Physical and chemical properties of Australasian microtektites
29. New evidence for a large Paleoproterozoic Impact: Spherules in a dolomite layer in the Ketilidian orogen, South Greenland
30. Origin of the Sudbury Igneous Complex, Ontario-differentiate of two separate magmas
31. Rare-earth element characteristics and origin of the Sudbury Igneous Complex, Ontario, Canada
32. Oxygen isotopes as tracers of tektite source rocks: An example from the Ivory Coast tektites and Lake Bosumtwi crater
33. The petrographic and chemical characteristics of tektites
34. On the lunar origin of tektites
35. Upper crustal structure of the Chicxulub impact crater from wide-angle ocean bottom seismograph data
36. Impact-induced thermal effects in the lunar and mercurian regoliths
37. The effects of differential scaling of impact melt and crater dimensions on lunar and terrestrial craters: Some brief examples
38. Post-depositional mobility of platinum, iridium and rhenium in marine sediments
39. U-Pb geochronology of the Sublayer environment, Sudbury Igneous Complex, Ontario
40. Evidence for a major impact structure in the Northwest province of South Africa-the Morekweng impact structure
41. Morokweng impact structure, Northwest Province, South Africa: Geophysical imaging and some preliminary shock petrographic studies
42. Emplacement geometry of the Sudbury Igneous Complex: Structural examination of a proposed impact melt-sheet
43. Cratering flow fields: Implications for the excavation and transient expansion stages of crater formation
44. Geology of the New Quebec crater
45. Geology and petrology of the Manicouagan resurgent caldera, Quebec
46. Shock zoning at Canadian craters: Petrography and structural implications
47. Impact melts
48. The nature and significance of terrestrial impact structures
49. Meteorite impact craters and the structure of the Sudbury basin
50. Evidence for an impact origin of Lake Wanapitei, Ontario
51. Isotope systematics support the impact origin of the Sudbury structure (Ontario, Canada)
52. Dating terrestrial impact events
53. The Sudbury Structure (Ontario, Canada): A tectonically deformed multi-ring basin
54. Popigai: Melt-coated gneiss bombs as flight recorder and automatic probe of the fire-ball
55. Popigai, Siberia-well preserved giant impact structure, national treasury, and world's geological heritage
56. Osmium isotope evidence for a crustal origin of platinum group elements in the Sudbury nickel ore
57. Isotopic evidence for distinct crustal sources of North and South Range ores, Sudbury Igneous Complex
58. Isotopic evidence for a single impact melting origin of the Sudbury Igneous Complex
59. Footwall of the Sudbury Igneous Complex, District of Sudbury
60. The effects of the Sudbury event and the intrusion of the Sudbury Igneous Complex on the footwall rocks of the Sudbury Structure
61. General geology of the Sudbury area
62. Shock metamorphic features and their zoning and orientation in the Precambrian rocks of the Manicouagan structure, Quebec, Canada
63. Breccia formation at a complex impact crater: Slate Islands, Lake Superior, Ontario, Canada
64. Comment on "Isotopic evidence for distinct crustal sources of North and South Range ores, Sudbury Igneous Complex" by A.P. Dickin, M.A. Arten, and J.H. Crocket
65. Coexisting pseudotachylite and rock glasses at the Haughton impact crater, Canada
66. Sudbury Structure 1997: A persistent enigma
67. Die Gesteine des kristallinen Untergrunds im Nördlinger Ries
68. The Sudbury Structure, Ontario, Canada-a review
69. Large meteorite impacts and planetary evolution
70. Recrystallized impact glasses of the Onaping Formation and the Sudbury Igneous Complex, Sudbury Structure, Ontario, Canada
71. Incipient melt formation and divitrification at the Wanapitei impact structure, Ontario, Canada
72. Slate Islands, Lake Superior, Canada: A mid-size, complex impact structure
73. Pseudotachylites in central parts of impact craters-orientation and timing of emplacement
74. Baddeleyite and its significance in impact glasses
75. The opaque minerals in impactite glasses
76. Chemical composition of Ries glass bombs
77. Shock produced rock glasses from the Ries crater
78. Distribution, petrography and shock metamorphism of the ejecta of the Ries crater in Germany-a review
79. Suevite breccia of the Ries impact crater, Germany: Petrography, chemistry and shock metamorphism of crystalline clasts
80. Suevite of the Ries crater
81. Riesgläser und moldavite
82. Diaplektische Gläser in den Breccien des Ries von Nördlingen als Anzeichen für Stoßwellenmetamorphose
83. Petrologische Untersuchungen im Ries
84. Origin of moldavites
85. Suevite breccia from the Ries crater, Germany: Origin, cooling history and devitrification of impact glasses
86. On volcanic rocks in Lake Jänisjärvi in eastern Finland
87. Use of platinum-group elements for impactor identification: Terrestrial impact craters and the Cretaceous-Tertiary boundary
88. Origin of the Sudbury structure by meteorite impact: Neodymium isotopic evidence
89. Isotopic composition of osmium in terrestrial samples determined by accelerator mass spectrometry
90. Conditions of impact melt formation and solidification in the Zhamanshin astrobleme
91. Petrology, structure and origin of the Manicouagan melt sheet, Quebec, Canada: A preliminary report
92. Manicouagan impact melt sheet, Quebec: 1. Stratigraphy, petrology, and chemistry
93. Traces of catastrophes: A handbook of shock-metamorphic effects in terrestrial meteorite impact structures
94. Vredefort bronzite granophyre: Chemical evidence for an origin as meteoritic impact melt
95. Iridium in the Vredefort bronzite granophyre: Impact melting and limits on a possible extraterrestrial components
96. The Gardnos impact structure, Norway: Petrology and geochemistry of target rocks and impactites
97. Microtektites: A chemical comparison of bottlegreen microtektites, normal microtektites, and tektites
98. Obermiozäne Seesedimente und Bunte Trümmermassen der Forschungsbohrung Wörnitzostheim I im Nördlinger Ries
99. Offene Fragen zur Tektitenforschung
100. Impact-induced melting in Archaean granulites in the Vredefort Dome, South Africa. I: Anatexis of metapelitic granulites
101. Excursion through the Vredefort impact structure. Field guidebook
102. Deeply exhumed impact structures: A case study of the Vredefort Structure, South Africa
103. Thermal-metamorphic signature of an impact event in the Vredefort Dome, South Africa
104. Microtektites in deep sea sediments
105. Glassy objects (microtektites?) from deep sea sediments near Ivory Coast
106. Chemical composition of Ivory Coast microtektites
107. Bottle green microtektites
108. North American tektite debris and impact ejecta from DSDP Site 612
109. Mineral inclusions in Muong Nong-type indochinites: Implications concerning parent material and process of formation
110. Coesite and shocked quartz discovered in the Australasian and North American microtektite layers
111. A layered moldavite containing baddeleyite
112. A Muong Nong-type Georgia tektite
113. Upper Eocene tektite and impact ejecta layer on the continental slope off New Jersey
114. Iridium anomaly from the Acraman impact ejecta horizon: Impacts can produce sedimentary iridium peaks
115. Terrestrial chondrules, glass spherules and accretionary lapilli from suevite, Ries crater, Germany
116. Impact craters of Nördlinger Ries and Steinheim Basin
117. Carbonate-silicate liquid immiscibility upon impact melting; Ries crater, Germany
118. Petrology and chemistry of the impact melt at Mistastin Lake crater, Labrador
119. The melt rocks at Brent crater, Ontario, Canada
120. Meteorite component and impact melt at the Lac à l'Eau Claire (Clearwater) impact structures, Quebec
121. An impact model for the Sudbury Structure
122. Extraterrestrial impacts on earth: The evidence and the consequences
123. Shocked lithologies at the Wanapitei impact structure, Ontario, Canada
124. An analysis of differential impact melt-crater scaling and implications for the terrestrial impact record
125. Manicouagan impact melt, Quebec: 2. Chemical interrelations with basement and formational processes
126. The melt rocks of the Boltysh impact crater, Ukraine, USSR
127. The Sudbury structure: Controversial or misunderstood?
128. Impact melt rocks from New Quebec crater, Quebec, Canada
129. The record of terrestrial impact cratering
130. Petrography and geochemistry of target rocks and impactites from the Ilyinets crater, Ukraine
131. Late Jurassic age for the Morokweng impact structure, southern Africa
132. In search of the Australasian tektite source crater: The Tonle Sap hypothesis
133. Integrated geophysical modeling of a giant, complex impact structure: Anatomy of the Vredefort Structure, South Africa
134. Proximal Cretaceous-Tertiary boundary impact deposits in the Caribbean
135. A possible Cretaceous-Tertiary boundary impact crater on the Yucatán peninsula, Mexico
136. The Henbury meteorite craters
137. Meteorite particles in the soil surrounding the Henbury meteorite craters
138. Untersuchungen an Riesgläsern
139. Bunte Breccia of the Ries: Continuous deposits of large impact craters
140. Heterogeneous dissemination of projectile materials in the impact melts from the Wabar crater
141. Bunte Trümmermassen und Suevit
142. Sudbury impact event: Cratering mechanics and thermal history
143. Rb-Sr isochron age of the Manicouagan impact melt sheet, Quebec, Canada
144. 39Ar dating of the Haughton impact structure
145. The Sudbury Igneous Complex-an impact melt sheet?
146. Chemical analyses of Bosumtwi crater target rocks compared with Ivory Coast tektites
147. A 2.023 Ga age for the Vredefort impact event and a first report of shock metamorphosed zircons in pseudotachylitic breccias and Granophyre
148. Shock metamorphism of the Coconino sandstone at Meteor Crater, Arizona
149. The role of volatiles and lithology in the impact cratering process
150. The geochemistry of tektites: An overview
151. Geochemistry and origin of Muong Nong-type tektites
152. Water content of glasses from the K/T boundary, Haiti: An indication of impact origin
153. Tektite origin by hypervelocity asteroidal or cometary impact: Target rocks, source craters, and mechanisms
154. Identification of meteoritical components in impactites
155. Chemical composition of North American microtektites and tektite fragments from Barbados and DSDP Site 612 on the continental slope off New Jersey
156. Early Archean spherule beds in the Barberton Mountain Land, South Africa: No evidence for impact origin
157. Detection of a meteoritic component in Ivory Coast tektites with rhenium-osmium isotopes
158. Re-Os isotope systematics as a diagnostic tool for the study of impact craters and ejecta
159. Geochemistry of impact glasses from the K/T boundary in Haiti: Relation to smectites and a new type of glass
160. Saltpan impact crater, South Africa: Geochemistry of target rocks, breccias, and impact glasses, and osmium isotope systematics
161. Kalkkop crater, Eastern Cape Province, South Africa: Confirmation of impact origin using osmium isotope systematics
162. Evidence of a meteoritic component in impact melt rock from the Chicxulub structure
163. Impact origin of Chesapeake Bay structure and the source of North American tektites
164. Re-Os isotope and geochemical study of the Vredefort Granophyre: Clues to the origin of the Vredefort structure, South Africa
165. The Jurassic-Cretaceous boundary event: The Morokweng impact structure, South Africa
166. Geochemistry and age of Ivory Coast tektites and microtektites
167. Morokweng, South Africa: A large impact structure of Jurassic-Cretaceous boundary age
168. Target rocks and breccias from the Ames impact structure, Oklahoma: Petrology, mineralogy, geochemistry and age
169. Geochemistry and petrography of a Late Archean spherule layer in the Griqualand West Basin, South Africa
170. Petrology and geochemistry of target rocks from the Bosumtwi impact structure, Ghana, and comparison with Ivory Coast tektites
171. Search for petrographic and geochemical evidence for the late Heavy Bombardment on earth in Early Archean rocks from Isua, Greenland
172. 39Ar ages of impact melt rocks and breccias from the Ames impact structure, Oklahoma: The Nicor Chestnut 18-4 drill core
173. Precise U-Pb zircon and baddeleyite ages for the Sudbury area
174. Rare earth elements in the Sudbury Nickel Irruptive: Comparison with layered gabbros and implications for Nickel Irruptive petrogenesis
175. Noble metal abundances in an Early Archean impact deposit
176. Les tektites sans formes figurées de l'Indochine
177. Breccia dikes: Geological constraints on the formationof complex craters
178. Microtektites and glassy microspherules in loess: Their discoveries and implications
179. Geochemical relationships in the Sudbury Igneous Complex: Origin of the main mass and offset dikes
180. Geologic and geochemical relationships between the Contact Sublayer, inclusions, and the Main Mass of the Sudbury Igneous Complex: A case study of the Whistle Mine embayment
181. Gological and geochemical record of 3400-million-year-old terrestrial meteorite impacts
182. The unmetamorphosed sedimentary fill of the Brent meteorite crater, south-eastern Ontario
183. Sr. Isotopes and trace element geochemistry of the impact melt and target rocks at the Mistastin Lake crater, Labrador
184. 13C) study of carbonates from the Houghton impact crater
185. Shock recovery experiments on dolomite and thermodynamic modeling of impact-induced decarbonation
186. The nature, distribution and genesis of the coesite and stishovite associated with the pseudotachylite of the Vredefort Dome, South Africa
187. Impactites from Popigai crater
188. Impact structures of northeastern Eurasia: The territories of Russia and adjacent countries
189. Petrochemical types of impact melts from Zhamanshin crater and their reconstructed initial substrates
190. Anatomy of the Popigai impact crater, Russia
191. Post-impact hydrothermal alteration of Manson impact structure
192. Platinun group elements in the morokweng impact structure, South Africa: Evidence for the impact of a large ordinary chondrite projectile at the Jurassic-Cretaceous boundary
193. Geochemical studies of Muong Nong-type indochinites and possible Muong Nong-type moldavites
194. Impact cratering
195. Impact crater collpse
196. Composition of crystalline basement and shock metamorphism of crystalline and sedimentary target rocks at the Haughton impact crater, Devon Island, Canada
197. Structural geology of the Henbury meteorite craters, Northern Territory, Australia
198. Projectile dissemination in impact melts from Meteor crater, Arizona
199. Dissemination and fractionation of projectile materials in the impact melts from Wabar crater, Saudi Arabia
200. Impact stratigraphy
201. Morphology of the Chicxulub impact: Peak-ring crater or multi-ring basin?
202. Meteoritic material in four terrestrial meteorite craters
203. The onaping formation
204. The main mass of the Sudbury igneous complex
205. Cryptic variation and petrology of the Sudbury Nickel Irruptive
206. The contact Sublayer of the Sudbury Igneous Complex
207. Fluidization and hydrothermal alteration of the suevite deposit at the Ries crater, Germany, and implications for Mars
208. Cenozoic and Quaternary great craterin events (with ejection of tektites) coincided with sudden shifts in absolute motion of the Pacific plate and sudden shifts in thermal and isotopic evolution of the Pacific Ocean
209. Die vulkanischen Tuffe des Ries bei Nördlingen
210. Impact-induced energy partitioning, melting, and vaporization on terrestrial planets
211. Impact-induced melting of planetary surfaces
212. Fission-track dating of Haughton astrobleme and included biota, Devon Island, Canada
213. The thermal history of the Manicouagan impact melt sheet, Quebec
214. First results of multidisciplinary analysis of Haughton impact crater, Devon Island, Canada: III. Petrography and shock metamorphism
215. Meteorite material at five large impact craters
216. The distribution of volatile and siderophile elements in the impact melt of East Clearwater (Quebec)
217. Chemistry of fluidal glasses and Melt Bodies in the Onaping Formation
218. Petrology of the upper irruptive rocks, Sudbury, Ontario
219. Dynamic implications of the petrology and distribution of impact melt rocks
220. Investigation of the Manicouagan impact crater, Quebec: An introduction
221. West Clearwater, Quebec impact structure. Part II: Petrology
222. Hydrocode modeling of oblique impacts: The fate of the projectile
223. A reevaluation of impact melt production
224. Upper Eocene impactites of the U.S. East Coast: Depositional origins, biostratigraphic origin, and correlations
225. The Ries impact crater
226. The geology and ore deposits of the sudbury structure
227. Microstructure of impact glasses and tagamites from IR-reflectance and low-angle X-ray dispersion
228. The allochthonous polymict breccia layer of the Haughton impact crater, Devon Island, Canada
229. The Lappajärvi meteorite crater, Finland: Petrology, Rb-Sr, major and trace element geochemistry of the impact melt and basement rocks
230. Pseudotachylite-generation by friction melting and shock brecciation?-a review and discussion
231. Exogenic and endogenic breccias: A discussion of major problematics
232. Pseudotachylites of the Vredefort Dome and the surrounding Witwatersrand Basin, South Africa
233. Geology and evolution of the Vredefort impact structure, South Africa
234. Petrographic observations on granitic clasts in granophyre of the Vredefort Structure
235. The "Bronzite Granophyre" from the Vredefort structure-a detailed analytical study and reflections on the origin of one of Vredefort's enigmas
236. Geochemistry of the melt and country rocks of the Lake St. Martin impact structure, Manitoba, Canada
237. The 1992 drill core from the Kalkkop impact crater, Eastern Cape Province, South Africa: Stratigraphy, petrography, geochemistry and age
238. Morokweng impact structure, South Africa: Geologic, petrographic, and isotopic results, and implications for the size of the structure
239. Early Archean spherule beds in the Barberton Mountain Land, Souh Africa: Impact or terrestrial origin?
240. New results from the deep borehole at Morokweng, North West Province, South Africa: Constraints on the size of this J/K boundary age impacy structure
241. Haughton impact structure: Structural and morphological aspects
242. Mineralization in the Whitewater Group
243. Conditions governing radiochronometers in impact regimes
244. Ergebnisse der Ries-Forschungsbohrung 1973: Struktur des Kraters und Entwicklung des Kratersees
245. Rare earth and barium abunances in Ivory Coast tektites and rocks from the Bosumtwi crater area
246. Source of the Australasian tektite strewn field: A possible off-shore impact site
247. Recent developments in the search for the site of the 780,000-year-old southeast Asian impact
248. Compositional variation and mixing of impact melts on microscopic scales
249. Structural analysis of the central and southwestern Sudbury Structure, Southern Province
250. New developments in Sudbury geology
251. Chicxulub multi-ring impact basin: Size and other characteristics derived from gravity analysis
252. Age and provenance of the target material for tektites and possible impactites as inferred from Sm-Nd and Rb-Sr systematics
253. Impact mechanics at Meteor Crater, Arizona
254. Isotopic evidence for the Cretaceous-Tertiary impactor and its type
255. Chromium in the Morokweng impact melt: Isotopic evidence for extraterrestrial components and type of impactor
256. The oldest Impact deposits on Earth-first confirmaion of an extraterrestrail component
257. Glass from the Cretaceous-Tertiary boundary in Haiti
258. Petrology of impactites from Lake St. Martin structure, Manitoba
259. West Clearwater, Quebec impact structure, Part I: Field geology, structure and bulk chemistry
260. Petrogenesis of melt rocks, Manicouagan impact structure, Quebec
261. Geological evidence for a srewn field of impact spherules in the Early Precambrian Hamersley Basin of Western Australia
262. Revised correlations in Early Precambrian Hamersley Basin based on a horizon of resedimentad impact spherules
263. Iridium Anomaly but no shocked quartz from Late Archean microkrystite layer: Oceanic impact ejecta?
264. Late Archean impact spherule layer in South Africa that may correlate with a Western Australian layer
265. Discovery of a layer of probable impact melt spherules in the Late Jeermah Formation (Fortescu Group, Weatern Australia)
266. Particles in Late Archean Carawin Dolomite (Western Australia) resemble Muong-type tektites
267. Geochemical evidence for an impact origin for a Late Archean spherule layer
268. The global stratigraphy of the Cretaceous-Tertiary boundary impact ejecta
269. Coarse-grained, elastic sandstone complex at the K/T boundary around the Gulf of Mexico: Deposition by tsunami waves induced by the Chicxulub impact?
270. Deep seismic reflection profiles across the Chicxulub crater
271. Meteoritic iron and silica glass from the meteorite craters of Henbury (Central Australia) and Wabar (Arabia)
272. Localized shock- and friction-induced melting in response to hypervelocity impact
273. Friction melt distribution in a multi-ring impact basin
274. The large impact process inferred from the geology of lunar multiring basins
275. Impact glasses from the suevite of the Nördlinger Ries
276. A new natural dense silicon dioxide glass in shocked garnet gneisses from the Ries crater, Germany
277. Anatomy of the Australasian tektite strewn-field and the probable site of its Source crater
278. The geology and gravity field in the central core of the Vredefort structure
279. Deformtion and transformation of rock-forming minerals by natural and experimental shock processes: I. Behavior of minerals under shock compression
280. Deformation and transformation of rock-forming minerals by natural and experimental shock processes, II. Physical properties of shocked minerals
281. Research drilling Nördlingen 1973: Polymict breccias, crater basement, and cratering model of the Ries impact structure
282. Glasses formed by hypervelocity impact
283. Classification and nomenclature of impact metamorphic rocks: A proposal to the IUGS Subcommission on the Systematics of Metamorphic Rocks
284. Shock metamorphism of quartz in nature and experiment: Basic observations and theory
285. Research drilling Nördlingen 1973 (Ries): Composition and texture of polymict impact breccias
286. Fission track ages of North American tektites
287. Fission track dating of meteorite impacts
288. Tektites: A post-Apollo view
289. Oxygen isotope studies in Ivory Coast tektites and impactite glass from the Bosumtwi crater, Ghana
290. Genetic significance of the chemical composition of tektites: A review
291. Geochemistry of Henbury impact glass
292. Chemical relationships among irghizites, zhamanshinites, Australian tektites and Henbury impact glasses
293. Field relations and petrography of the Vredefort Granophyre
294. Geochemistry and impact origin of the Vredefort Granophyre
295. Potential of 1870s/1860s as a cosmic versus terrestrial indicator in high iridium layers of sedimentary strata
296. Petrological evidence of shock metamorphic origin of Ilyinets structure (in Russian)
297. Popigai impact structure (Arctic Siberia, Russia): Geology, petrology, geochemistry, and geochronology of glass-bearing impactites
298. Acraman impact ejecta and host shales: Evidence for low-temparature mobilization of iridium and other platinoids
299. Coesite discovered in tektites
300. Layered tektites: A multiple impact origin for the Australasian tektites
301. Rb-Sr and Sm-Nd of Upper Eocene microtektites: A potential Popigai source
302. On the Old Granite of the Vredefort region and some of its related rocks
303. Rb, Sr and strontium isotopic composition, K/Ar age and large ion lithophile trace elemnt abundances in rocks and glasses from the Wanapitei impact structure
304. Multi-component source for Muong Nong-type bediasite 30775-2
305. Meteoritic material at four Canadian impact craters
306. Potassium-argon ages of the Manicouagan-Mushalagan lakes structure
307. K-Ar measurements of tektites
308. Petrogenetic significance of chromium spinels from the Sudbury Igneous Complex, Ontario, Canada