geology 1.0 / 5 based on 1 rating ? GeologyfossilsA2/A-levelOCR Created by: ra9718Created on: 27-05-16 16:01 why is the UK in the position of 51°N? due to plate tectonics 1 of 16 what are the two types of evidence for the paleoclimatic changein the uk? fossil and lithological 2 of 16 what are the fossil evidences for the northward drift? corals and plants 3 of 16 what are the lithological evidences for the northward drift? coal/tillites/evaporites/desert sandstones/reef limestones 4 of 16 what are fossils? the remains of living organisms 5 of 16 what is an organism? something that was once alive. it might be single celled(1 cell) or multi celled (various cells) 6 of 16 what is a trace fossil? the geological remains of biological activity 7 of 16 what is a body fossil? is considered the hard part of an organism such as skeletons and shells 8 of 16 what is dissolution? the process whereby minerals that make up the fossils dissolve and are removed by groundwater in solution 9 of 16 what is replacement? is atom by atom substitution of one mineral to another 10 of 16 what is a mould? is the impression of the outside or inside of a fossil 11 of 16 what is a cast? is an infilled fossil void, usually with another mineral 12 of 16 what are the 5 types of preservation? replacement/silicification/pyritisation/carbonisation/mould and cast formation 13 of 16 what are the big five mass extinctions? h 14 of 16 what is a mass extinction? is when there is a massive decrease in the number of different species over a relative short time period 15 of 16 how can corals be used as evidence for the northward drift? due to the fact that they are restricted only to the warm tropics within 30°N and 30°S of the equator. 16 of 16
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