Large Meteorite Impacts and Planetary Evolution Book

	Preface
1	The Large Impact Process Inferred from the Geology of Lunar Multiring Basins	1
2	Coincidence in Time of the Imbrium Basin Impact and Apollo 15 KREEP Volcanic Flows: The Case for Impact-Induced Melting	11
3	Evidence from Magellan for Unexpectedly Deep Complex Craters on Venus	19
4	Large Impact Craters and Basins on Venus, with Implications for Ring Mechanics on the Terrestrial Planets	29
5	The Effects of Differential Scaling of Impact Melt and Crater Dimensions on Lunar and Terrestrial Craters: Some Brief Examples	51
6	The Crisium Basin: Implications of an Oblique Impact for Basin Ring Formation and Cavity Collapse	61
7	Experimental Studies of Geochemical Aspects of Impact Cratering	73
8	Geomechanical Models of Impact Cratering: Puchezh-Katunki Structure	81
9	Hypervelocity Impact: Ejecta Velocity, Angle, and Composition	93
10	Impact-Induced Melting of Planetary Surfaces	103
11	A Late Devonian Extraterrestrial Impact and Extinction in Eastern Gondwana: Geochemical, Sedimentological, and Faunal Evidence	111
12	The Conditions of Shock Metamorphism	121
13	Tektite Origin by Hypervelocity Asteroidal or Cometary Impact: Target Rocks, Source Craters, and Mechanisms	133
14	Impactites from Popigai Crater	153
15	Pseudotachylites of the Beaverhead Impact Structure: Geochemical, Geochronological, Petrographic, and Field Investigations	163
16	Pseudotachylites of the Vredefort Dome and the Surrounding Witwatersrand Basin, South Africa	177
17	Breccia Veins and Dykes Associated with the Roter Kamm Crater, Namibia	197
18	Acraman: A Major Impact Structure from the Neoproterozoic of Australia	209
19	Allochthonous Impact-Shocked Rocks and Superimposed Deformations at the Beaverhead Site in Southwest Montana	225
20	Preliminary Results of the U.S. Geological Survey-Iowa Department of Natural Resources Geological Survey Bureau Manson Core Drilling Project	237
21	The Zhamanshin Impact Feature: A New Class of Complex Crater?	249
22	Al Umchaimin Depression, Western Iraq: An Impact Structure?	259
23	Origin of the Polymict, Allochthonous Breccias of the Onaping Formation, Sudbury Structure, Ontario, Canada	265
24	Pseudotachylytic Rock Distribution and Genesis Within the Sudbury Impact Structure	275
25	Isotope Systematics Support the Impact Origin of the Sudbury Structure (Ontario, Canada)	289
26	The Formation of the Sudbury Structure, Canada: Toward a Unified Impact Model	303
27	Lineament Analysis of the Sudbury Multiring Impact Structure	319
28	Sudbury Igneous Complex: Impact Melt or Endogenous Magma? Implications for Lunar Crustal Evolution	331
	Index	343