...1. There are two types of weathering. The first is mechanical weathering, the gradual breakdown of rock to sand, and then to silt, or powdered rock, and finally to clay through physical means. Mechanical weathering occurs in a variety of ways. For example, Heat and cold may cause minerals within a rock to expand and shrink at different rates, creating cracks. Water may seep into those cracks and freeze, expanding and splitting the rock. A raging river or ocean waves can smash rocks against each other, wearing the outsides smooth and turning rocks into sand. Or sand carried by the wind can act like sandpaper, slowly wearing rock away. A Glacier can rub debris against the rock beneath it, also acting like sandpaper. Even plants can force rocks to split as roots creep into cracks and grow. The second type of weathering is chemical Weathering, the breakup of rock caused by a change in its chemical makeup. Rain is the most common producer of chemicals that can weather rock. For example, Rain absorbs carbon dioxide and sulfur dioxide from the atmosphere, forming carbonic acid and sulfuric acid, two liquids capable of dissolving other materials. The levels of carbonic and sulfuric acids in rain, while generally weak, can over time dissolve rock such as limestone, freeing other types of rock. Over very long periods, rain can even dissolve enough limestone to create caves and unusual rock formations. 2. Leo Messi was born on June 24, 1987, in Rosario, Argentina, soccer player Lionel Messi...
Words: 2486 - Pages: 10
...GLG 101 - Week 6 Assignment: Metamorphic Rocks Lab PART 2/2 (UOP) FOR MORE CLASSES VISIT www.glg101tutorial.com Resources: pp. 108–116 of Geoscience Laboratory and Appendixes K & L Identify and classify the rock examples in Appendix K. Answer the Appendix L questions from your lab book. Write your responses in Appendix K. Complete All of Appendix K & L. Post completed Appendix K & L in the individual forum. Due day 7. ================================================= GLG 101 Assignment Deserts Lab (UOP) FOR MORE CLASSES VISIT www.glg101tutorial.com Resources: pp. 265–276 of Geoscience Laboratory and Appendix M Answer the Appendix M questions from your lab book. Write your responses in Appendix M. Complete ALL of Appendix M. Post completed Appendix M to the individual forum. Due day 7. ================================================= GLG 101 Assignment: Earthquake Technology Lab (UOP) FOR MORE CLASSES VISIT www.glg101tutorial.com Resources: pp. 156–170 of Geoscience Laboratory and Appendix F Answer the questions listed in Appendix F from the lab book. Write your responses in Appendix F. Complete ALL of Appendix F. Post the completed Appendix F in the individual forum. Due day 7. ================================================= GLG 101 Assignment Groundwater Lab (UOP) FOR MORE CLASSES VISIT www.glg101tutorial.com Resource: pp. 213–227 of Geoscience Laboratory and Appendix N. Answer the Appendix N questions from...
Words: 2964 - Pages: 12
...the asthenosphere, the weaker, hotter, and deeper part of the upper mantle. The boundary between the lithosphere and the underlying asthenosphere is defined by a difference in response to stress: the lithosphere remains rigid for very long periods of geologic time in which it deforms elastically and through brittle failure, while the asthenosphere deforms viscously and accommodates strain through plastic deformation. The lithosphere is broken into tectonic plates. The uppermost part of the lithosphere that chemically reacts to the atmosphere, hydrosphere and biosphere through the soil forming processis called the pedosphere. The concept of the lithosphere as Earth’s strong outer layer was developed by Joseph Barrell, who wrote a series of papers introducing the concept.[2][3][4][5] The concept was based on the presence of significant gravity anomalies over continental crust, from which he inferred that there must exist a strong upper layer (which he called the lithosphere) above a weaker layer which could flow (which he called the asthenosphere). These ideas were expanded by Harvard geologist Reginald Aldworth Daly in 1940 with his seminal work "Strength and Structure of the...
Words: 1750 - Pages: 7
...Abstract Central Texas contains Precambrian rocks, which were exposed due to the Llano uplift. This paper looks further into the Devil’s Waterhole of Ink’s Lake to get a better understanding of the area. First the geology of the Llano uplift is studied to get a better understanding of how the rocks in the area were formed. The rocks in the area, which consists of Valley Springs Gneiss and Town Mountain Granite, are studied even further to see the composition of each and how each was formed. The Valley Spring Gneiss is split into amphibolite, biotite gneiss, quartz-feldspar gneiss, and quartzite. Each of the five different rock samples were observed and studied in the area to give us a better understanding of their compositions, how they were formed, and what their protoliths are. The Devil’s Waterhole of Ink’s lake is the area of focus in studying Precambrian rock. Throughout the Ink’s Lake region we will take focus on the Precambrian metamorphic rock that was exposed due to the Llano uplift. The Llano uplift contains some of the oldest rocks in North America and is exposed in Ink’s Lake, Texas. This is exposed due to the oceanic-continent collision, which drove the Llano uplift upward. After the weathering away of the younger rock on top, the currently exposed metamorphic rock is more easily observed. Following the Llano uplift exposure, there was an intrusion of the Town Mountain Granite, which we will also look further into. We also observe the areas reactions such as...
Words: 2128 - Pages: 9
...general name for a group of magnesium rich hydrous sheet silicates possessing similar structure and chemical composition. Many green rocks owe their color to chlorite and chlorite owes its name to its green color. The Greek word choros, meaning “green,” is the origin of chlorite’s name. Consisting of negatively charged mica-like (2:1) layers regularly alternating with positively charged brucite-like (octahedral) sheets, the basic structure of chlorites allows for various compositions(Grim,1962). Members are differentiated by substitutions within the octahedral layer and the tetrahedral or octahedral positions of the mica-like layer. The arrangement of hydroxide and 2:1 sheets stacked in the z-direction defines the polytype of chlorite. There are theoretically six possible layer interlayer assemblages in either semi-random or regular "one-layer" polytypes. Of these six polytypes, four have been observed in nature (Partice De Caritat ect. 1993): clinochlore (Mg,Fe2+)5Al(AlSi3O10)(OH)8, chamosite (Fe2+,Mg)5Al(AlSi3O10)(OH)8, nimite (Ni,Mg,Al)6((Si,Al)4O10)(OH)8, and pennanite Mn52+Al(AlSi3O10)(OH)8. Provenance Chlorite is widespread throughout the world, often found in low- to medium-grade regional metamorphic rocks and as a secondary mineral to mafic silicates in igneous, metamorphic, and sedimentary rocks. It is an occasional constituent of igneous rocks, in most cases probably forming secondarily by deuteric or hydrothermal alteration of primary ferromagnesian minerals, such as mica...
Words: 3760 - Pages: 16
...subduction zone? al Ⅲ What two types of plate boundaries exist in northern California today? th Ⅲ What are terranes, how do they originate, and why are they important in northern California? Northern California.2 The Sierra Nevada: California’s Geologic alifornia’s Ge Backbone Ⅲ What is the Sierra Nevada batholith? rra batholi Ⅲ What kinds of rocks surround the Sierra Nevada batholith? ra Ⅲ When and how was the modern Sierra Nevada uplifted? e Ⅲ What types of gold deposits occur in the Sierra Nevada? e? Ⅲ What is the Mother Lode? Northern California.3 The Klamath M Mountains t ath an Ne evada Ⅲ In what ways are the Klamath Mountains and the Sierra Nevada similar? ds ro o ath M Ⅲ What kinds of rocks comprise the ophiolites in the Klamath Mountains and what tectonic events do they signify? ineral occu th ntai Ⅲ What mineral resources occur in the Klamath Mountains? Northern California.4 The Gr Ca rnia e Great Valley fa s th i he Valle Ⅲ What factors have led to the formation of fertile soils in the Great Valley? at t ime y Grea Seq Ⅲ What was the origin of the sedimentary rocks in the Great Valley Sequence? ori l p duced Gr Ⅲ What is the origin of the natural gas produced in the Great Valley? y Gre chron ooding Ⅲ Why is the Great Valley so prone to...
Words: 29429 - Pages: 118
...crust using geophysical methods such as gravity and magnetic surveys. Mining geologists also use geophysics to search new mineral deposits. In areas such as the Nevada Great Basin, geoscientists rely more on geophysical images than on geologic maps. The Great Basin area holds one of the biggest mineral concentrations in the world. Economically, gold is the most prominent commodity. The most important gold deposits are hosted by carbonate rocks, called the Carlin-type and Carlin-like gold deposits. Carlin-type and Carlin-like gold deposits are unique geologically, are abundant in Nevada, and are hardly found elsewhere. Although much research has been done, a lot of the geology is still unclear. This paper discusses how ArcGIS provides a tool for research on mineral resources. Emphasis is on the functionality of ArcGIS to handle multiple data sets and maps as well as data visualization techniques using ArcGIS. Great Basin Geology Figure 1 shows the distribution of known gold deposits combined with topography, young geologic rocks, and county lines. Data sets were downloaded and compiled from several United States Geological Survey (USGS) Web sites (e.g., Raines et al., 1996). Data processing was done using ArcGIS 8.3 and its 3D Analyst extension. The Great Basin is complicated by its physiography and surface geology. The area is one of the largest Cenozoic continental rift systems in the world. Its topography is characterized by a patchwork of mountain ranges and...
Words: 1947 - Pages: 8
...exactly how rifting comes about, but the process is so well displayed in East Africa (Ethiopia-Kenya-Uganda-Tanzania) that geologists have attached a name to the new plate-to-be; the Nubian Plate makes up most of Africa, while the smaller plate that is pulling away has been named the Somalian Plate (Figure 1). These two plates are moving away form each other and also away from the Arabian plate to the north. The point where these three plates meet in the Afar region of Ethiopia forms what is called a triple-junction. However, all the rifting in East Africa is not confined to the Horn of Africa; there is a lot of rifting activity further south as well, extending into Kenya and Tanzania and Great Lakes region of Africa. The purpose of this paper is to discuss the general geology of these rifts are and highlight the geologic processes involved in their formation. What is the East Africa Rift System? The oldest and best defined rift occurs in the Afar region of Ethiopia and this rift is usually referred to as the Ethiopian Rift. Further to the South a series of rifts occur which include a Western branch, the "Lake Albert Rift" or "Albertine Rift" which contains the East African Great Lakes, and an Eastern branch that roughly bisects Kenya north-to-south on a line slightly west of Nairobi...
Words: 1715 - Pages: 7
...Carbon from Latin: carbo "coal" is the chemical element with symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. There are three naturally occurring isotopes, decaying with a half-life of about 5,730 years. Carbon is one of the few elements known since antiquity. There are several allotropes of carbon of which the best known are graphite, diamond, and amorphous carbon. The physical properties of carbon vary widely with the allotropic form. For example, diamond is highly transparent, while graphite is opaque and black. Diamond is among the hardest materials known, while graphite is soft enough to form a streak on paper (hence its name, from the Greek word "to write"). Diamond has a very low electrical conductivity, while graphite is a very good conductor. Under normal conditions, diamond has the highest thermal conductivity of all known materials. All carbon allotropes are solids under normal conditions with graphite being the most thermodynamically stable form. They are chemically resistant and require high temperature to react even with oxygen. The most common oxidation state of carbon in inorganic compounds is +4, while +2 is found in carbon monoxide and other transition metal carbonyl complexes. The largest sources of inorganic carbon are limestones, dolomites and carbon dioxide, but significant quantities occur in organic deposits of coal, peat, oil...
Words: 8042 - Pages: 33
...Unit 9 Assignment 1: Geology of the Area Maryland’s Geology From the Atlantic coast on the east to the Appalachian Plateau on the west, Maryland has a great variety of geology and landforms. Maryland is part of six physiographic provinces (shown in the figure below). A physiographic province is a geographic area in which the geology (including lithology and structure) and climate history have resulted in landforms that are distinctly different from adjacent areas. An overview of the geology by physiographic province is provided below. Atlantic Coastal Plain The Atlantic Coastal Plain Province is underlain by a wedge of unconsolidated sediments including gravel, sand, silt, and clay, which overlaps the rocks of the eastern Piedmont along an irregular line of contact known as the Fall Zone. Eastward, this wedge of sediments thickens to more than 8,000 feet at the Atlantic coast line. Beyond this line is the Atlantic Continental Shelf Province, the submerged continuation of the Coastal Plain, which extends eastward for at least another 75 miles where the sediments attain a maximum thickness of about 40,000 feet. The sediments of the Coastal Plain dip eastward at a low angle, generally less than one degree, and range in age from Triassic to Quaternary. The younger formations crop out successively to the southeast across Southern Maryland and the Eastern Shore. A thin layer of Quaternary gravel and sand covers the older formations throughout much of the area. Mineral...
Words: 7489 - Pages: 30
...Unit 9 Assignment 1: Geology of the Area Maryland’s Geology From the Atlantic coast on the east to the Appalachian Plateau on the west, Maryland has a great variety of geology and landforms. Maryland is part of six physiographic provinces (shown in the figure below). A physiographic province is a geographic area in which the geology (including lithology and structure) and climate history have resulted in landforms that are distinctly different from adjacent areas. An overview of the geology by physiographic province is provided below. Atlantic Coastal Plain The Atlantic Coastal Plain Province is underlain by a wedge of unconsolidated sediments including gravel, sand, silt, and clay, which overlaps the rocks of the eastern Piedmont along an irregular line of contact known as the Fall Zone. Eastward, this wedge of sediments thickens to more than 8,000 feet at the Atlantic coast line. Beyond this line is the Atlantic Continental Shelf Province, the submerged continuation of the Coastal Plain, which extends eastward for at least another 75 miles where the sediments attain a maximum thickness of about 40,000 feet. The sediments of the Coastal Plain dip eastward at a low angle, generally less than one degree, and range in age from Triassic to Quaternary. The younger formations crop out successively to the southeast across Southern Maryland and the Eastern Shore. A thin layer of Quaternary gravel and sand covers the older formations throughout much of the area. Mineral...
Words: 7488 - Pages: 30
...embodiment of regality, nobility, and holiness. It represents a form of art that seeks to depict the dimension of the transcendent. In other words, the Stupa Reliquary represents a type of view, in which earthly and material remains are oriented towards a transcendent and vertical plane of existence. That is to say that the piece, as a reliquary, functions as a housing of the remains of religious figures, yet because of the nature of religion itself, the relics contained within bear a sacred or transcendent element. This is an interesting piece, but it is difficult to understand without considering the background of the piece. This research will explore the context of the Stupa Reliquary to obtain a better understanding of the piece. It will focus on its function, origins, audience and how its design relates to a central Buddhist symbol. The present paper will argue that the Stupa Reliquary through its very composition, function and design attempts to capture precisely how the material world may turn itself towards...
Words: 2092 - Pages: 9
...subjects, and every candidate shall take all the compulsory subjects and opt for three of the optional subjects carrying 600 marks in all but not more than 200 marks from a single group. 2. A candidate shall answer the language papers in the language concerned. The question paper in Islamiat is to be answered in Urdu or English. All other papers must be answered in English. Violation of this instruction shall incur cancellation of the concerned paper(s) and consequently award of Zero. 3. The compulsory and optional subjects and maximum marks fixed for each subject shall be as below: Sr. No. 1 2 3 COMPULSORY SUBJECTS Subjects English (Précis & Composition) English Essay General Knowledge (a) Current Affairs 100 (b) Every Day Science 100 (c) Pakistan Affairs 100 Islamiat Viva Voce Total Maximum Marks 100 100 300 100 300 900 600 120 4 5 Qualifying marks in the aggregate of written papers: Qualifying marks in the Viva Voce: The non-Muslim candidates will have the option to take Islamiat as a compulsory subject or otherwise Pakistan Affairs (General Knowledge PaperIII) will be treated of 200 marks and counted in lieu of Islamiat. A candidate who fails to appear in any of the compulsory subject will not be allowed to appear in the remaining papers of the examination. No candidate shall be summoned for Viva voce test unless he has obtained at least 33 percent marks in each optional subject, 40% in the each compulsory subject and 50% marks in the aggregate of the written...
Words: 10965 - Pages: 44
...respondents in terms of 1.1. Age 1.2. Gender 1.3. Length of membership in Stigmatine Youth Movement (SYM) 1.4. Length of exposure to Screamo Music 2. What are the effects of Screamo music as perceived by the Stigmatine Youth Movement (SYM) in the apostolate? 3. Is there a significant relationship between the profile of the respondents and the perceived effects of screamo music to the spiritual enrichment of the Stigmatine Youth Movement (SYM)? Methodology A descriptive survey research was used in this study. Descriptive research involves collection of data in order to test hypothesis or to answer questions concerning the current status of the subject of the study. The descriptive research has no control over what is, and it can only measure what already exist. The researcher abides into descriptive method of research in order to determine the perceived effects of screamo music to the spiritual enrichment of the S.Y.M. 1. The respondent’s profile 1. Age Mostly of the respondents age belong to the adolescence which range from thirteen to eighteen (13 – 18) – twenty five...
Words: 12340 - Pages: 50
...Unit 1: Understanding Our Natural World Theme A: The Dynamic Landscape Specification: GCSE Geography Unit 1: Understanding Our Natural World Theme A: The Dynamic Landscape |Specification Content |Learning Outcomes |Teaching and Learning Activities |Resources | |The Drainage Basin: A |Students should be able to: | | | |Component of the Water Cycle | | | | | |demonstrate knowledge and understanding of|The two websites listed here give clear animations of the hydrological cycle |www.epa.gov/ogwdw/kids/flash/ flashwatercycle.html | | |the components of the drainage basin cycle|which students can watch and discuss. |www.sweetwater.org/education/ watercycle.swf | | |and their interrelationships: | | ...
Words: 5512 - Pages: 23
