Test environment running 7.6.6

Cultural advice

The Australian National University acknowledges, celebrates and pays our respects to the Ngunnawal and Ngambri people of the Canberra region and to all First Nations Australians on whose traditional lands we meet and work, and whose cultures are among the oldest continuing cultures in human history.

Aboriginal and Torres Strait Islander peoples are advised that ANU Library collections may include images, names, voices, and other representations of deceased persons.

Material in the collection may contain terms, language or views that reflect the period in which the item was created and may be considered inappropriate today.

A deep drillcore from the Morokweng impact structure, South Africa: petrography, geochemistry, and constraints on the crater size

Date

Authors

Reimold, W U

Armstrong, Richard

Koeberl, Christian

Publisher

Elsevier

Abstract

The Morokweng impact structure in South Africa was formed 145 Ma ago, at the time of the minor mass extinction that marks the Jurassic-Cretaceous boundary. Previous size estimates for the Morokweng impact structure ranged between 70 and 340 km, and those

Keywords

Keywords: crater; impact structure; Jurassic-Cretaceous boundary; mass extinction; petrography; SHRIMP dating; size; South Africa Absolute ages; Catastrophes; Cretaceous; Granophyre; Impact craters; Impact features; Jurassic; SHRIMP data

URI

http://hdl.handle.net/1885/72201

Collections

Open Access Research

Source

Earth and Planetary Science Letters

Type

Journal article

DOI

10.1016/S0012-821X(02)00658-1

Restricted until

2037-12-31

Downloads

File

Description

01_Reimold_A_deep_drillcore_from_the_2002.pdf (377.79 KB)