IES - Fall 2014 - Class 6 - TWO WEEK WARNING! EXAM 1: Thursday September 25th Sedimentary Rocks Chapter 7 Sedimentary Rocks ~75% of rocks exposed at

TWO WEEK WARNING!!!EXAM 1: Thursday September 25th

Sedimentary RocksChapter 7

Sedimentary Rocks•~75% of rocks exposed at Earth’s surface aresedimentary but only ~10% of the outer15 km of the Earth.•Contain evidence of past environments.•Only rock type to contain fossils.•Economically important:host oil, gas, uranium and coal deposits.source of sand and gravels for construction….•If you don’t grow it, you mine it! (mostly fromsedimentary rocks)…

Sedimentary RocksTwo major groups of sedimentaryrocks:clastic (detrital)andnon-clastic (chemical)Clasticrocks are formed frommineral grains(clasts)boundtogetherSedimentary rocks form from thecompaction,cementation, andlithificationof sedimentsNon-Clastic (Chemical)rocks areformed from evaporation,precipitation, or biologicalprocesses

Understandingthe Earth, 4th ed

Understandingthe Earth, 4th edPhotography undermicroscope

Porosity vs Permeability

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Term

Fall

Professor

BradleyCramer

IES - Fall 2014 - Class 6 - TWO WEEK WARNING! EXAM 1:...

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