Term
products of mechanical and chemical weathering? |
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Definition
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sedimentary rocks compose of ___ of earths outer 10 miles. |
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sedimentary rock contain evidence of ___ ___. |
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sedimentary rock forms when Material from mechanical and chemical weathering is transported by___, ___ or ___. |
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sedimentary rocks form Deposition as sediment meaning particles ___ out or minerals ___. |
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sedimentary rock form when sediments are ___ and sediments are __ and __ into rock. this is called? |
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Definition
buried; compacted and cemented; Diagenesis/Lithification |
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Term
3 types of sedimentary rock? |
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Definition
derital; chemical; organic |
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compacted and cemented sediment? |
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Definition
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minerals precipitated from water? |
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accumulated plant debris - coal? |
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The chief constituents of detrital rocks include __ minerals, ___,___,___.Particle size is used to distinguish among the various rock types. |
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Definition
clay; quartz; feldspars; micas |
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Term
Detrital sedimentary rocks are classified according to___ ___. |
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Definition
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The most abundant sedimentary rock? |
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Definition
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Greater than ___ of sedimentary rocks are shale. |
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Definition
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clay sized grains - cannot see individual grains, are fissile; and weathers easily so few outcrops. |
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breaks into thin layers because clay minerals are flat and aligned? |
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Forms from gradual settling in quiet-water environment. examples are lakes, floodplains, swamps, ocean basin? |
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Definition
Shale Environment of deposition |
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Definition
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Term
Features of Sandstones is ___ ___,grain ___. |
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Definition
grain sorting; grain roundness |
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Term
Common Types of Sandstone are __ __,__,__. |
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Definition
quartz sandstone; arkose; graywacke |
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Term
all quartz? quartz and feldspar? quartz, feldspar and ferromagnesian minerals? |
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Definition
quartz sandstone; arkose; graywacke |
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Term
Length of sediment transport determined from shape, sorting and mineral composition of sand grains? |
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Definition
Sandstone Environment of Deposition |
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Term
Sand grains are well rounded, well sorted, and composed of quartz. examples are Sand dune, beach? |
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Definition
Long transport from weathered source |
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Term
Sand grains are angular, poorly sorted and composed of quartz, feldspar and ferromagnesian minerals. examples are turbidite – submarine land slide? |
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Definition
Short transport from weathered source |
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Term
for Conglomerate minerals grains are ___ sized and ___, __ sorted, __ rounded. |
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Definition
pea; larger; poorly; well |
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Term
Conglomerate Depositional environment is __ __ transport, __ slopes, very ___ currents, __ __ and __. |
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Definition
high energy; steep; turbelent; mountain streams; landslide |
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Consist of precipitated material that was once dissolved in water? |
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Definition
Chemical sedimentary rocks |
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Term
Chemical sedimentary rocks have __ process and ___ process. |
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Definition
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Term
Minerals precipitate from water as a result of evaporation? |
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Definition
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Minerals precipitate as shells of aquatic organisms and collect on the sea floor or lake beds? |
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Definition
organic process- biochemical origin |
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Term
Chemical Sedimentary Rocks: Most abundant chemical rock • Composed of the mineral calcite? |
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Definition
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Term
form as coral reefs, coquina, and chalk? |
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Definition
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Term
corals secrete a CaCO3 external skeleton that are cemented together into reefs? rock of broken shells? rock of shells of microscopic organisms? |
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Definition
coral reefs; coquina; chalk |
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Term
example of inorganic limestone? |
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Definition
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Term
Inorganic precipitate of microcrystalline quartz (SiO2 ) deposited directly from water>\? |
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examples of chert: dark from organic matter? red from iron oxide? banded jasper? |
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Generally an inorganic chemical precipitate? |
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Definition
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Water in enclosed basins evaporates concentrating elements to saturation with minerals, Least soluble minerals precipitate first, form salt flats? |
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Made of organic matter • organic matter deposits in stagnant swamps? |
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partially altered plant material very smoky when burned and low energy? |
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Definition
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Term
soft, brown coal, moderate energy? |
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Definition
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Term
soft, black coal, major coal used in power generation and industry and high energy? |
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Definition
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Term
hard, black coal, used in industry, and high energy? |
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Definition
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Term
All chemical, biological and physical changes that take place after a sediment is deposited? |
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Definition
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Term
process in which unconsolidated sediment is transformed into solid rock? |
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Definition
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Term
Lithification involves two processes __ and ___. (hint cc) |
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Definition
compaction and cementation |
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Term
sediment buried and grains squeezed together? ___ experiences the greastest ___. |
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Definition
compaction; shale; compaction |
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Term
water in pore space precipitates minerals? |
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Definition
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Term
Sedimentary Environments: land ex. alluvial (river deposits), desert, lakes, glacial? |
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Definition
terrestrial (continental) |
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Sedimentary Environments: transitional between land and sea ex. delta, tidal flat, beach? |
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Definition
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Sedimentary Environments: ocean ex. deep ocean mud, reefs, turbidites? |
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Definition
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Term
Change rock type and sedimentary environment within a single sedimentary layer? |
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Definition
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Provide information about the environment of deposition. • Help determine if a sedimentary layer is right-side-up.? |
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Sedimentary Structures: sedimentary layers (beds)? |
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Sedimentary Structures: desert sand, river? |
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Sedimentary Structures: Current , sand bar in shallow stream – Wave oscillation (back and forth) on beach? |
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Sedimentary Structures: turbidites on continental shelf? |
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Sedimentary Structures: ancient soil zone? |
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Remains or traces of prehistoric life often found in sedimentary rocks? |
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Definition
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___ Occurs in pore space of sedimentary rock. |
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