Metamorphic rock

about 30 minutes until he began to talk about the Rock Garden. Chad: “After Founders Hall, please head to the Rock Garden, where you can show your students our 19 large rock specimens ranging from 100lbs to nearly 1 ton. In addition, to our 5 sedimentary, 6 metamorphic, and 7 igneous rock types.” Me: I immediately raised my hand and said, “I am so sorry to interrupt, but that is just fascinating. Unfortunately, I haven 't been able to visit our Rock Garden. I hope I am not only speaking for…

weather in the United States, which it can attribute to its geology. San Diego is also well known for consistent droughts; however, its current unique geography is a result of ancient rivers and seas depositing Cretaceous and Tertiary sedimentary rocks. As a result of these ancient rivers, “San Diego County can be divided between three distinct geomorphic regions: the Coastal Plain region as exposed west of the Peninsular Ranges, the Peninsular Range region, and the Salton Trough region as…

About 60% of the territory is mountainous, apart from the coasts. Puerto Rico offers Varity of amazing rain forest, deserts, beaches, caves, oceans and rivers. Puerto Rico has three major Geographic regions: Mountainous interior, coastal lowlands, and the karst area. Mountainous interior is formed by a chain of central mountains generally known as Cordillera Central, The largest mountains are Cerro La Punta (1,338 m) in Jayuya; Rosas (1,267 m) found between Jayuya and Ciales, Guilarte (1,205 m)…

Onyx: The Practical and Metaphysical Story Onyx is a specific variety of the mineral known as chalcedony. It is a banded mineral, which means that the layering of the rock that formed it has caused “bands” of different colors to appear. Many people mistake onyx for a type of agate, which is another type of chalcedony, but where agate has curved bands onyx has parallel bands instead. Onyx is found in nearly every color, though bands of black and white are the most common. When onyx is banded…

The Great Dividing Ranges also known as the Eastern Ranges are a mountain range geographically located in Australia. The great ranges spand from the north eastern tip of Queensland down southwards to the edge of New South Wales eventually ending in the west most part of Victoria. In total the Ranges length rounds off to a distance of 3,500 kilometres, long enough to earn it the title of third longest land based range in the world. The width of the range varies slightly along its length from…

Sediment-hosted copper deposits are formed by fluid mixing in permeable sedimentary and (more rarely) volcanic rocks. Two fluids are thought to be involved: an oxidized brine carrying copper as a chloride complex, and a reduced fluid that commonly formed in the presence of anaerobic sulfatereducing bacteria. For a sediment-hosted copper deposit to form, four conditions are required: (1) an oxidized source rock, (2) a brine to mobilize copper, (3) a reduced fluid to precipitate copper, and (4)…

ancient siliciclastic sequences of river sediments. The value of the technique lies not only in the number of possible minerals, but also in that many of them have petrogenetic parageneses that positively identify the involvement of particular parent rocks. Single grain analytical methods have been most successful in constraining provenance compared with bulk methods (Gehrels et al., 1995; Mange and Morton, 2007). This approach is based on the principle of finding a diagnostic and distinct…

lay large 60 degree a ngeled slabs of rock known as the Flatirons. Over millions of years sediment become compressed into these layers of rock. Clues to what may have caused the tilted sedimentary layers are the darker rock at the bottem called granite, which has no layering like the rock on top of it. The garnite full of menerals showing signs of magma, from a liquid rock. From class I know that magma is usually found deep within the Earth. But this rock has been pushed up causing a tilting…

was observed to be igneous rock, with evidence of batholith, an igneous specific type of intrusion that spans for miles at a time. This is evident in figure 8. Various minerals and a grainy texture were also observed. Because of this, and identification of minerals such as quartz, as observed in figure 6, and orthoclase, in figure 9, this rock was concluded to be the igneous rock, granite. Granite forms when magma under the Earth slowly crystallizes. Igneous rock forms when there is an…

Hill pluton of South Carolina is one of twenty-four known granitoid bodies along the southern Appalachian Piedmont which possess the properties of a supergroup as described by Pitcher. The country rocks surrounding the plutons are at least mid-Paleozoic in age. Liberty Hill lies within country rocks of the Carolina Slate belt which consists of “primarily intermediate to felsic pyroclastic debris and hypabyssal intrusive bodies.” (Speer et al. 1980). The isotopic ages of metamorphism from the…