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Testing Your Knowledge
Testing Your Knowledge

... a. when forces are applied to an object, the object is under stress b. strain is the change in shape or size (volume), or both, while an object is undergoing stress c. stresses can be compressive, tensional, or shear d. all of the preceding 10. The compass direction of a line formed by the intersect ...
Earth System PP slides
Earth System PP slides

... • Only dense materials with very high melting points able to remain (rocky, metallic elements) ...
Sedimentary Rock Identification
Sedimentary Rock Identification

... accumulations of mineral particles derived from weathering and erosion of preexisting rocks, chemical deposition, or accumulation of plant and animal remains. Metamorphic rocks form when igneous, sedimentary, or other metamorphic rocks are subjected to intense heat and pressure to form ...
THE ROCK CYCLE
THE ROCK CYCLE

... Directions: Complete each row by drawing pictures and writing captions in the missing spaces. ...
Pathways 2 and 3
Pathways 2 and 3

... extractable component of soil humic substances. They are dark brown to black in color. Fulvic acids - the fraction of humic substances that is soluble in water under all pH conditions. They remains in solution after removal of humic acid by ...
Chapter 6: Igneous Rocks
Chapter 6: Igneous Rocks

... • Texture refers to a rock’s appearance with respect to the size, shape and arrangement of its grains. • Extrusive rocks are typically fine-grained (grains smaller than 1mm). The grains are small because the magma cooled rapidly at the surface, and large crystals did not have time to form. Some intr ...
Earth Science 3.4 - Sleeping Dog Studios
Earth Science 3.4 - Sleeping Dog Studios

... These conditions are found a few kilometers below Earth’s surface and extend into the upper mantle. Most metamorphism occurs in one of ...
Rocks
Rocks

... b. The second identifier is the __________________________________________ when discussing the ____________________________ rocks. For example, marble and quartzite look a lot alike, but are made of very different minerals. (the ________________ test identifies marble and a comparison of ___________ ...
Virtual Lab Igneous Rock ID
Virtual Lab Igneous Rock ID

... mafic, intermediate, or felsic are your options 3. What is the texture of the sample? Aphanitic, phaneritic, vesicular, glassy, porphyritic, and pegmatitic are your options 4. What are the major minerals present in the rock? Refer to page 111 in your textbook. a. Mafic: plagioclase, pyroxene, olivin ...
main forms of energy governing soil formation
main forms of energy governing soil formation

... Gravity influences all movements of solid, liquid and gaseous materials. It is an inherent form of energy and influences the vector and velocity of fluxes within soils (e.g. movement of solutes) as well as at their surface (e.g. soil erosion by water). – Therefore, gravity is one of the main factors ...
MAIN FORMS OF ENERGY GOVERNING SOIL FORMATION
MAIN FORMS OF ENERGY GOVERNING SOIL FORMATION

... Gravity influences all movements of solid, liquid and gaseous materials. It is an inherent form of energy and influences the vector and velocity of fluxes within soils (e.g. movement of solutes) as well as at their surface (e.g. soil erosion by water). – Therefore, gravity is one of the main factors ...
Calcium in magmatic processes
Calcium in magmatic processes

... compounds, such fluorite – sellaite or apatite – wagnerite. However, inverse abundance is well-known, see periclase – lime, or brucite – portlandite pairs. Characteristic Mg2+ / Fe2+ substitution in all rock-forming minerals. The Mg dominance in high temperature and in calk-alkaline magmatites. On t ...
Faculty of Engineering Department of Civil Engineering CE 403211
Faculty of Engineering Department of Civil Engineering CE 403211

Global Natural Cycles
Global Natural Cycles

... In chemical weathering the elemental composition of the rock changes as particular elements are released and others stay behind. The elements that are released can reform into secondary (clay) minerals such as kaolinite. This process is greatly enhanced by the activity of plant roots and soil microb ...
Geology Content from the Frameworks
Geology Content from the Frameworks

...  Usually after burial, the deposited sediment undergoes lithification (the processes that turn it into a rock). This includes cementation and compaction.  Sedimentary rocks are made from sediment. Sediment is loose particulate material (clay, sand, gravel, shells, plant fragments, etc.). Sediment ...
Plate Tectonics Review & The Rock Cycle (11/3)
Plate Tectonics Review & The Rock Cycle (11/3)

...  Lava: magma that reaches the earth’s surface. Debris ranging from large chunks of larva rock to glowing hot ash, liquid lava and gases such as water vapor, carbon dioxide and sulfur dioxide.  Much of the world’s volcanic activity is concentrated along the boundaries of the earth’s tectonic plates ...
fossil
fossil

... LAYERS OF ROCK ARE MISSING BECAUSE OF UPLIFT AND EROSION. THE RESULT CAN BE A LARGE AGE DIFFERENCE BETWEEN THE ROCKS ABOVE AND THOSE BELOW THE EROSIONAL SURFACE (IT APPEARS LIKE A SQUIGGLY LINE IN A CROSS-SECTION) ...
Sedimentary Rocks Crossword - pita
Sedimentary Rocks Crossword - pita

... 6 Sedimentary rock composed of small grains of sand (quartz and feldspar). (9) 7 Very hard sedimentary rock that often forms inside limestone. (5) 9 Sedimentary rock composed of the mineral calcite, which comes from evaporated seabed and animal shells. (9) 11 The process where sediments are glued to ...
Relative Dating - Cloudfront.net
Relative Dating - Cloudfront.net

... rock must be younger than the rock a. Igneous intrusion - is younger than rock it has intruded (cut across). Pre-existing rock ...
Name Date
Name Date

... characteristic is due to the A) luster of the mineral B) age of the mineral C) internal arrangement of the mineral’s atoms D) force with which the mineral is broken 2) According to the Earth Science Reference Tables, what is the approximate percentage by volume of oxygen in the crust of the Earth? A ...


... Period ______ ...
Earth Science Milestones Review Notes Packet
Earth Science Milestones Review Notes Packet

... Weathering- process (action) of rock being broken down into smaller pieces, called sediment. Different agents cause weathering. There are 2 types of weathering: 1. Mechanical Weathering: when rock is broken down by a physical force (you can usually see a crack in the rock or the smaller pieces that ...
Geology of Howth
Geology of Howth

... Their shells and bones which were made up of the mineral calcium carbonate built up to form sedimentary rocks known as limestones. There are different types of limestones in the Howth and Sutton areas because the sea in which they were deposited changed through time. Most of the limestones are rich ...
Revised Abstract
Revised Abstract

... from Carlin-type deposits. It is also well-known to mineral collectors for occurrence of thalliumbearing mineral specimens. Mineralization occurs in shear zones cutting Paleozoic carbonate strata including silicified, organic-rich, and microbrecciated zones often known as “jasperoid.” The mineral as ...
Igneous, metamorphic and sedimentary rocks.
Igneous, metamorphic and sedimentary rocks.

... Igneus Rocks: all rocks that form by cooling and/or crystalization of molten material within the crust or at the Earth’s surface. Sedimentary Rocks: all rocks formed by deposition and consolidation of mineral grains and those formed from precipitation of minerals from solution in water. The grains a ...
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Weathering



Weathering is the breaking down of rocks, soil and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, roughly translated to: ""with no movement"" , and thus should not be confused with erosion, which involves the movement of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity and then being transported and deposited in other locations.Two important classifications of weathering processes exist – physical and chemical weathering; each sometimes involves a biological component. Mechanical or physical weathering involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. The second classification, chemical weathering, involves the direct effect of atmospheric chemicals or biologically produced chemicals also known as biological weathering in the breakdown of rocks, soils and minerals. While physical weathering is accentuated in very cold or very dry environments, chemical reactions are most intense where the climate is wet and hot. However, both types of weathering occur together, and each tends to accelerate the other. For example, physical abrasion (rubbing together) decreases the size of particles and therefore increases their surface area, making them more susceptible to rapid chemical reactions. The various agents act in concert to convert primary minerals (feldspars and micas) to secondary minerals (clays and carbonates) and release plant nutrient elements in soluble forms.The materials left over after the rock breaks down combined with organic material creates soil. The mineral content of the soil is determined by the parent material, thus a soil derived from a single rock type can often be deficient in one or more minerals for good fertility, while a soil weathered from a mix of rock types (as in glacial, aeolian or alluvial sediments) often makes more fertile soil. In addition, many of Earth's landforms and landscapes are the result of weathering processes combined with erosion and re-deposition.
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