Hand Samples- Oceanography

Descrição

Oceanography hand samples pt 1
A Noble
FlashCards por A Noble, atualizado more than 1 year ago
A Noble
Criado por A Noble aproximadamente 7 anos atrás
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Resumo de Recurso

Questão Responda
Shale Deposition of volcanic ash Exhibits upward fining Mud cracks on top
Amphibole Tremolite Same structure throughout, but different habits Native mineral
Quartz Grew in vein on metamorphic rock Same structure, different habits
Hornblend Filled in gaps on host rock
Muscovite Sheet silicate
Magnetite Iron in different valence stages
Apatite Large euhedral crystals Grew in cavity
Diorite Intermediate Intrusive
Granite Felsic More potassium feldspar, quartz Intrusive
Chlorite Index mineral Low-grade metamorphism (low heat and pressure)
Talc Metamorphosed mudstone Sheet silicate
Pyrite Iron sulfide May be found in sediments due to sulfate-reducing bacteria
Schist Metamorphized mudstone Often co-occurs with pyrite Final form is gneiss
Quartzite Metamorphosed sandstone
Basalt Extruded into seawater Mafic Vesicles from rapid cooling
Collection of shell-building organisms Plankton, coralline algae, gastropods, clams, corals Form limestones

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