The impact of impact

19Citations
Citations of this article
129Readers
Mendeley users who have this article in their library.

Abstract

Adrian Boyce and John Parnell examine whether traces of life be found in the harshest conditions on Mars. The Haughton impact crater lies in the wilderness of the Canadian High Arctic on Devon Island - the largest uninhabited island on Earth. Nearly 40 million years ago, a meteorite two kilometers across crashed into Earth, leaving behind a 23km-wide crater in the bedrock and causing serious damage over an area of 50km 2. The rocks the meteorite encountered were mainly ancient carbonates, around 470 million years old, but they also contained thick beds of sulphate salts, called gypsum. These are the remnants of ancient seas and lakes that dried up, of which there are many examples through geological time. The occurrence of sulphate also sparks an intriguing possibility. Sulphate is at the heart of one of the oldest and most important biological metabolic functions on Earth - bacterial sulphate reduction.

Cite

CITATION STYLE

APA

Brewer, J. D. (2011). The impact of impact. Research Evaluation, 20(3), 255–256. https://doi.org/10.3152/095820211X12941371876869

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free