preservation of fossils 4.0 / 5 based on 2 ratings ? Geologymethods of preservation A2/A-levelOCR Created by: ellenioannouCreated on: 13-03-15 12:29 235641 Across 1. what is a common example of pyritisation? (9, 4) 4. in replacement what does unstable aragonite change to? (7) Down 2. What replaces the fossil material in silicification? (6, 7) 3. What are exceptional methods of preservation? (5, 3, 3) 5. What causes carbonisation? (10) 6. an external mould has what features of the shell? (8, 8)
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