S103 Discovering Science Diary

Block 10

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19th June 2003

I am now nearly all the way through this block and have done most of TMA08! The question on the granite was enjoyable, but a nightmare at the same time!! Hopefully, my effort will be enough! Most of this block I've found to be "revision" really - but there has still be some interesting bits. Like I didn't know (from S260), why "felsic" and "mafic" were actually called that!! Also, the radiometric dating is interesting. Oh, it all is!

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Block 10: Earth and Life Through Time Fossils and the early history of life Getting into the fossil record Interpreting fossils as living organisms Life's long fuse to the Cambrian explosion The Cambrian explosion More of life's comings and goings Invasion of the land Extinctions are forever Evolutionary radiations Putting things in order Minerals - the crystalline world What are minerals Mineral chemistry Silicate minerals: variations on a tetrahedral theme Igneous rocks - out of the melting pot Diversity in igneous rocks From rock to magma: melting processes From magma to igneous rock: crystallization processes Magmas, processes and plate-tectonic settings Sedimentary rocks - recording surface environments The stuff of sediments Sedimentary processes Sedimentary deposits as environmental indicators From sediments to sedimentary rocks Metamorphic rocks - taking the heat and the pressure New rocks for old Rock deformation Mountains and metamorphic belts Geological time Annual events and cycles Estimating geologica time - reason and religion in the 18th and 19th centuries Estimating geological time - how old is a volcano? Estimating geological time - geology and physics in the late 19th century Measuring geological time - radiometric dating Calibrating the stratigraphic column Scenes from Britain's geological past The Caledonides and the building of Britain (545-400 Ma ago) Britain in the Devonian and Carboniferous Periods (417-290 Ma ago) Britain in the Permian and Triassic Periods (290-206 Ma ago) Britain in the Jurassic and Cretaceous Periods (206-65 Ma ago) Volcanic Britain in the early Cenozoic Era (65-53 Ma ago) Post-volcanic Britain and into the future Connections Energy sources The hydrosphere The atmosphere The biosphere Climate and the solid Earth