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UA - GEOS 251 - Class Notes - Week 6

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School: University of Arizona
Department: Geoscience
Course: Physical Geology
Term: Fall 2018
Tags: sedimentary
Name: GEOS 251 Notes Week 6
Description: Class notes for week 6
Uploaded: 10/02/2018
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School: University of Arizona
Department: Geoscience
Course: Physical Geology
Term: Fall 2018
Tags: sedimentary
Name: GEOS 251 Notes Week 6
Description: Class notes for week 6
Uploaded: 10/02/2018

Unformatted text preview: In class notes Youngestel September 25th 2018 (In class notes) Sedimentary Rocks! Steps to making arock. Compaction 700 DYT pe o Cementation Compaction by buria Isquarzes Precipitationovaddition Oor water other ninerals coments Sediment particles 50-60 o water 10-20%. weiter Lithiticoetion * Two kinds of cements* 1 ) Calcite 27 Quc rtz ASSOU Hon? How do you know it it's calcite or Quartz espullout you HCI lacid). Sound Groung (1-2mmor 1/8-1/10) Sand Stones Csemented together)Geologico Note that Mam.y. = millions of years ago Hint: This is exactly like problems we have done in class. You are writing the chapters of a book, from oldest to youngest! Image 1: Please describe the main events seen in this slide. State what happened (eg, accumulation of limestone) and when it happened (e.g. Devonian time). September 24th 2018 Lan class notes) Youngest event: the same time Sorting Same size. grain LWell sorted s nd) Different sizegroin (poorly sorted sand) s seen in sion one Distance of Transport Short mocherate Copo Long terten) * The further you travel the smaller you becomes Connection. It you walk. 3 milo you wald loose move wheight Cori than it you walked Y2 mile Diferent kinds of SANDSTONES Type -> Lithic Sandstone: Arkese Quartz Gray wacker cucenite Comp -> rock fraqment rica teld-rich are quartz mattixrich Location -> Delta Allovial tan Beach Submarine tap Fanything bigger than sand is termed gravel Grave I conglomerate Exs 5 Granite Grandioritie Diorites #multiple vocks toquetherwhen it happened September 24092018 In class notes Youngest event: the same ts seen i sion on Ust SANDSTONE sea level 3 SHALE SANDSTOAE Sealere 2 LIMESTONE SHALE Slundstone Sea Level 1 Rising Sea Level * Transgressive Sequence SHALE IMESTONE Limestone Sealevel SAND STONE dnospras SHAUNDSTONE Sealevel 2 SANDSTONE SHALE mestone LCL Level Sealevel 3 A Regressive Sequences SHALE LIMESTONE LIMESTONE