SEDIMENTARY ROCKS MINERAL OR ROCK FRAGMENTS OR MATERIAL

... PRESSURE CONDITIONS UNDER WHICH THEY FORMED Davidson 4.26 METAMORPHIC ROCKS: MARBLE HEAT AND PRESSURE METAMORPHOSE LIMESTONE INTO MARBLE Metamorphic rocks formed by increasing pressure/temperature ... DIAGENESIS OF SEDIMENT INTO SEDIMENTARY ROCK, ONLY PLATE TECTONIC PROCESSES CAN CAUSE PRESSURES AND TEMPERATURES HIGH ENOUGH TO PRODUCE METAMORPHIC ROCKS METAMORPHIC ROCKS INDICATE TEM...

Ngày tải lên: 30/11/2016, 18:08

... from H1 This is a naturally occurring solid mixture composed of minerals, small rock fragments, organic matter, or glass $100 Answer from H1 What is rock? $200 Question from H1 This rock type ... this; it refers to grain size and grain arrangement $500 Answer from H2 What is texture? $100 Question from H3 Rock and mineral fragments that are loos...

Ngày tải lên: 30/11/2016, 16:37

... THE ROCK CYCLE Relative proportions of rock groups Sedimentary rocks: larger proportion of land surface The greater proportion created by weathering, erosion & deposition These are known as clastic ... & deposition These are known as clastic sediments SEDIMENTARY ROCKS • Clastic sediments from weathering & erosion of pre- existing rocks • Weathering can be physical (f...

Ngày tải lên: 30/11/2016, 17:09

... (flood event?) Sedimentary environments Concept of Sedimentary “Facies” “Facies” are representations of sedimentary environments defined by the overall association of features preserved in rocks ... dunes at top of picture Sedimentary Structures Note ripplemarked sand dunes at top of picture Sedimentary structures: Mud Cracks Say you find mud cracks in an ancient sedimentary roc...

Ngày tải lên: 29/11/2016, 22:44

... us about the nature of the source rocks Loose Sediments gravel sand silt clay Sedimentary rocks conglomerate sandstone siltstone shale Detrital Sedimentary Rocks ❖ Other important textural features: ... Detrital Sedimentary Rocks Breccia ❖ Course like a conglomerate, but with angular grains ❖ Short transport! ❖Deposited close to the source area for sediment ◆ Detrital sedimen...

Ngày tải lên: 29/11/2016, 22:46

... of older rocks in a conglomerate Sedimentary Rocks and the Rock Cycle Volcanic rocks (basalt flows on Hawaii) being turned into sediments Basalt flows Basalt gravels Older sedimentary rocks Younger ... (transport) processes • Soils •Types of sedimentary rocks: Chemical Origin of Sedimentary Rocks - Derived through the weathering and erosion of pre-existing rocks - Form by...

Ngày tải lên: 29/11/2016, 22:47

... What are rocks made of? Minerals are not made by people; they are … …naturally occurring substances Name four properties (or clues) that scientists use to identify minerals Color, luster, ... off the mineral? What words can be used to describe a mineral s luster? Glassy, dull, shiny, greasy Why is color not a good property to use to identify a mineral? slate limestone Many minerals...

Ngày tải lên: 30/11/2016, 13:38

... The Rock Cycle • Rocks in the Earth’s crust are constantly changing shape and composition • The way the rock forms determines the type of rock that it is • The three main types of rocks are: igneous, ... knives, and scrapers • Used for centuries to make buildings, roads, and monuments • Certain types of rocks have helped build ancient and modern civilizations • Rock study has helped sc...

Ngày tải lên: 30/11/2016, 14:29

... absolute age dating • determination of amounts of radioactive parent and stable daughter Relative Age dating SED-MET ROCKS -AGE • Age determination method • relative and absolute age determination ... ROCKS -AGE • Age determination (geologic age) • important concepts used • relative age concepts • crosscutting and intrusive nature of igneous rocks • law of superpo...

Ngày tải lên: 30/11/2016, 15:37

... separate into bands and sometime to even flow before cooling again! Common Metamorphic Rocks Parent Rock Metamorphic Rock Granite Gneiss Shale Slate Sandstone Quartzite The Rock Cycle ... the hot magma of batholiths L.Gardiner/Windows Original Regional Metamorphism Tectonic forces smash continents together The rocks get heated and become semi-molten The added pressure...

Ngày tải lên: 30/11/2016, 16:21

... for the classification of arenites If the proportion of matrix is less than 15% plot the data and use Dott’s diagram for the classification of arenites This classification is based on the major ... distances, increasing the maturity of the sands (e.g., Colorado River, Rio Grande, Mississippi River) II Genetic Classification of sedmentary rocks Classificat...

Ngày tải lên: 30/11/2016, 16:52

... record • They hold all of the oil, gas,coal, and water — locating these materials requires an understanding of the physical characteristics of different sedimentary rocks and how those characteristics ... 3-D Coconino Sandstone Coconino Sandstone up close thin slice of Coconino sandstone seen through microscope un-cemented quartz sand grains from a sand dune So how are sedim...

Ngày tải lên: 30/11/2016, 16:54

... transportation Sedimentary rocks are typically layered, (although layering is not diagnostic of only sedimentary rocks) Lecture Outline Sedimentary rocks; surface processes Your sedimentary environment ... carbonate rocks ("carbonates") and evaporitic rocks ("evaporites") Lecture Outline Sedimentary rocks Your sedimentary environment and Burial and diagenesis Interpretat...

Ngày tải lên: 30/11/2016, 17:06

... converting loose sediment into sedimentary rock – Combination of compaction and cementation Types of Sedimentary Rocks • Detrital (clastic) sedimentary rocks – Most common sedimentary rock type – Form ... pre-existing rocks • Chemical sedimentary rocks – Have crystalline textures – Form by precipitation of minerals from solution • Organic sedimentary rocks – Accumulate f...

Ngày tải lên: 30/11/2016, 17:06

... rocks made of silt- and clay-sized particles are collectively called mudrocks, and are the most abundant sedimentary rocks Clastic Terms Latin Greek Gravel Rudite Psephite Sand Arenite Psammite ... Sediment Sizes and Clastic Rock Types Rock Type Sediment Grain Size Shale Clay less than 0.001 mm Siltstone Silt 001-0.1 mm Sandstone Sand 01-1 mm Conglomerate Gravel 1mm + Sedimentary...

Ngày tải lên: 30/11/2016, 17:06