Free Essay

Rocks of Connecticut

In: Science

Submitted By duffyr5
Words 1273
Pages 6
| Rocks of Connecticut | [Type the document subtitle] | | Raury Duffy | 4/27/2011 |

[Type the abstract of the document here. The abstract is typically a short summary of the contents of the document. Type the abstract of the document here. The abstract is typically a short summary of the contents of the document.] |

I’ve lived in Connecticut my whole life and until now I was unaware of its geological history. Admiring the landscape of the state has always been one of my great pleasures. When I traveled around the country I would compare the natural wonders of each state to my own. Besides the rocky mountains in Colorado and the white mountains of New Hampshire few places match Connecticut’s regal terrain. Growing up in Bristol I would hike up to Pinnacle Mountain in Plainville, my friends and I would stand in awe of the magnificent rock structures. In the summer I would go on vacation to Old Lyme, it was there I fell in love with the earth’s most beautiful contrasts, the ocean meeting the rock and vice a versa. But until now I never educated myself on how all this magnificence came about. In this paper I will chronologically describe the eras and events that formed Connecticut’s geologic history.

The oldest rocks provide a window through time telling a story of continental collisions so powerful that they raised mountains thousands of feet high. Others reveal evidence of a slow but constant attack from the elements that wore down those same majestic peaks (Mchone 2004). Giant monoliths stand testament to a time when the earths crust was cracked and lava flowed over the state. Beaches and enormous boulders are the remains of when Connecticut was frozen beneath a sheet of ice (Mchone2004).

The Archeozoic era Archean period: The story begins about 400 million years ago when the North American continent was formed. It was a turbulent time with very explosive volcanic activity. Most rocks from this period have gone through so much change that today they are very difficult to interpret (Cook 1933). The one rock geologist's were able to discover was Becket gneiss, it is considered Connecticut’s oldest rock.

The Paleozoic Era Cambrian period: Most of Connecticut’s rocks were formed during this era. The state was mostly land; however geologists have found limestone deposits imbedded in Putnam gneiss which would indicate that the eastern portion of the state was covered by sea. In the west stretched a shallow salt water bay. In the water sediments were laid down, they later formed Stockbridge limestone. It is actually a type of marble. Today you can still see this stone in action, the state capital in Hartford is built entirely of that particular rock. The bay also produced quartzite that can be found in the North Western portion of the state (Troxell 1923).

Ordovician period: During this period rocks were being raised and folded, pressure brought about metamorphism. The Stockbridge limestone was partly changed to marble; Berkshire and Hartland schist were produced as a result of a massive collision known as the Taconic revolution. Mountains were formed that had an altitude of 20,000 feet; this was the beginning of the Connecticut highlands (Cook 1933).

Silvrian period: The records are incomplete from this time period. Geologists speculate that the lack of evidence indicates that the state must have been a giant land mass with a basin of salt water to its west and an ocean to the east. The Taconic Mountains were being eroded and sediments were swept into the western portion of the state. These sediments became the Waterbury gneiss (Cook 1933).

Devonian period: Pegmatite dikes serve as evidence of this time period. The mountain making had ceased and rivers carried sediments to the west creating the alluvial plain (Flint 1930).

Mississippian, Pennsylvanian and Permian periods: The Appalachian cataclysm produced mountains 10,000 feet high that replaced the sea that previously occupied the west, rocks were folded and granite intruded these folds. When compression was at its highest, slates, marbles, gneisses and schist’s were formed. A central trough started to materialize between the highlands; this was the inception of lowlands (Cook 1933).

The Mesozoic Era Triassic period: It is believed that the coast stretched past long Island and that the state was much larger during this time. Mountains stood tall in the eastern and western sections of the state. Wind blown deposites filled the waters. Triassic sandstone was formed including schales and conglomerates as a result of these deposits (Schairer 1931).

Jurassic,Comanchean and Cretaceous Periods: After the volcanic activity of the previous periods the sedimentary rocks tilted on an angle of 15 to 20 degrees. The elevation of the west was higher than that of the east, streams changed courses and their velocity increased. Boulders and sand were carried into the valleys to a depth of 2,500 feet. Trap rock surfaced and ridges were formed (Cook 1933).

The Cenozoic Era Tertiary Period: A worldwide cataclysm took place during this time, Connecticut’s portion of the change was known as the tertiary uplift. This gave the state an even skyline, the highest point was Bear Mountain at 2,355 ft. Weathering leveled the sandstones to a level below the resisting trap rock. At this point Connecticut started to look similar to what we see today (Troxell 1923).

Quaternary Period: Ice hundreds of feet thick moved from the north through Connecticut 4 and possibly 5 times. In the south it reached Long Island and Fishers Island. Rocks that were picked up by the giant Ice sheet were deposited all over Connecticut. They dammed rivers forming lakes and ponds. Waterfalls cascaded and rivers sought new levels. The till or drift that was deposited formed moraines. Clay beds, sand planes and serpentine ridges give us evidence of these massive glaciers (Cook 1933).

In this next section I will try to explain my observations of the geology of Madison ct. I began my research at Hamonassett state park specifically the Meigs point region. What I found were large boulders that were scattered across the point. These are left over’s from a glacier that covered North America 26,000 years ago. It took around 10,000 years to fully recede. Most of the boulders I observed were granite others were foliated and probably granite gneiss.

After Hamonassett I traveled to west wharf and then to the surf club at both places there is a huge outcrop of rock that stretches about 100 feet into the water. The rock is metaphoric. I was able to make this assumption by observing the banding that was throughout the rock. After doing some research I found out they formed during the Permian Period of the Palezoic Era. Great pressure was applied to the sediments I believe it may have been part of the Appalachian movement. The rock looks to be sterling granite gneiss with many pegmatite layers some that appear to be quartz.

Researching this paper has taught me a lot, I learned by reading books and physically observing nature. I spent hours down at the beach trying to figure how the rocks I was looking at came to be. Then it dawned on me the ocean must have weathered the Igneous rocks breaking them down into sediment and then great pressure was applied by the rocks on top of them causing them morph into new rock. Finally erosion has exposed what we see today. I love nature and I have always enjoyed viewing her majesty. Understanding the history has helped me appreciate the beauty a little bit more. This class and paper was just what I needed to peak my curiosity.…...

Similar Documents

Free Essay

History of Rock

...History of Rocks As explained in Visualizing Geology, rocks are the words that tell the story of Earth’s long history and minerals are the letters that form the words. While this report will not be discussing minerals, it will introduce the history of rocks and how they are affected by plate tectonics. The focus of this report is on two of the three types of rocks, igneous and metamorphic rocks. Plate tectonics plays a key role in the life of these types of rocks. So let’s get started by first explaining igneous rocks. Next metamorphic rocks will be explained. Lastly, plate tectonics and the affect this theory has on both types of rock. Igneous rocks are rocks that form from magma that has been cooled and solidified. Igneous rocks have a structure that is made up of crystals. Igneous rocks are placed into to categories. As stated before, rocks are created by minerals. The process of a liquid forming into a solid is known as crystallization. The first category is extrusive or volcanic. These rocks are cooled on the top of the Earth’s surface. Extrusive rocks have microscopic crystals because it cools relatively quickly and the crystals do not have a chance to become as large as they could be. Extrusive rocks are formed by lava cooling. The second category is intrusive or plutonic. These rocks are cooled below the Earth’s surface. Intrusive rock is formed by the cooling of magma. Intrusive rocks have crystals that can be seen with the naked eye because the cooling process is......

Words: 965 - Pages: 4

Free Essay

Le Rock

...Le rock est une musique ancienne et nouvelle en même temps. Dans ce qui suit, nous allons vous présenter quelques aspects de l’historie de ce genre musical. Le rock est un genre de musique populaire qui a débuté dans les années 1960. Le genre prend ses racines dans le rock 'n' roll, le rhythm and blues, la country des années 1940 et 1950 ainsi que dans la folk music, le jazz et la musique classique. Il est caractérisé par une mélodie vocale dominante, souvent accompagnée par une (ou plusieurs) guitare électrique, une guitare basse et une batterie, mais peut également être accompagné de synthétiseurs/piano, de cuivres ou d'autres instruments. Pendant la fin des années 1960 et le début des années 1970s, le rock a développé plusieurs sous-genres. Il a été mélangé avec la musique folk, (ce qui donna le folk rock), avec du blues (blues rock) et avec du jazz (jazz-rock fusion). Dans les années 1970, le rock fut influencé par la soul, le funk, et la musique latine. Egalement pendant les années 1970, le rock développa beaucoup de sous-genres comme le soft rock, glam rock, heavy metal, hard rock, progressive rock, et punk rock. Parmi les sous-genres du rock ayant émérgé pendant les années 1980 il y a la new wave, le hardcore punk et le rock alternatif. Pendant les années 1990, les nouveaux sous-genres du rock incluent le grunge, le Britpop, l'indie rock, et le nu metal. Un groupe de musiciens spécialisés dans le rock est appelé un groupe de rock. La plupart des groupes de rock......

Words: 1333 - Pages: 6

Free Essay


...MICHAEL E. PORTER The State of Connecticut: Strategy for Economic Development Introduction Connecticut had long been one of the most prosperous U.S. states. With a per capita income of $39,300 in 19991 compared with the U.S. average of $28,542,2 it had the highest standard of living of any state. However, Connecticut had been hit especially hard by the recession of the early 1990s, the worst since the 1930s. During the recession, Connecticut lost one out of every 10 jobs.3 Although the recession ended in 1992, the recovery in the early 1990s was anything but robust. High unemployment rates persisted in some urban areas, and the state’s poverty rate almost doubled, from a 1987–1989 average of 4.5% to 8.4% for the 1997–1999 period.4 Worried leaders initiated the state’s first serious effort to foster economic development in living memory. After several years of little progress, Governor John Rowland (elected in 1994) initiated a cluster-based economic development strategy in late 1995. By 1999, state government had been reorganized, new institutions created, and unprecedented public-private collaboration around competitiveness was taking place. In 2000, Governor Rowland was evaluating the state’s progress thus far and considering how to carry the strategy forward. Connecticut Profile Do No Connecticut, one of the 13 original U.S. colonies, adopted in 1639 the first constitution establishing representative government. Connecticut was the fifth state to approve......

Words: 13638 - Pages: 55

Free Essay

History of Rocks

...Material History of Rock Worksheet Leah Bechtel 12/09/2012 SCI/245 Robert Dillon Write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks. The role of plate tectonics in the origin of igneous rock is extremely important. Igneous rock is formed from magma that reaches the continental and oceanic crust or through hot spots that are around the world. There are three different places where igneous rocks can form; where the lithospheric plates pull apart at mid ocean ridges, where plates come together at seduction zones, and where continental crust is pushed together making the crust thicker and allowing it to heat to a melting point. The word igneous comes from the Latin word for fire, igneous rocks start off as a hot, fluid material which is usually erupted from the Earth’s surface as lava, or magma at shallow depths or deep depths. Magma is a mush like material that can carry a load of minerals, but people often think of lava and magma as a liquid like material of molten metals. The three types of igneous rocks are extrusive, intrusive and platonic rocks. Extrusive rocks are rocks that form and cool on the crust of the Earth whether it is on the continental crust or the oceanic crust. Extrusive rocks cool quickly, within a few seconds to months and they have invisible or very small grains; extrusive rocks have an aphanitic texture. Intrusive rocks are rocks that form within already existing rocks causing sills......

Words: 957 - Pages: 4

Premium Essay


...ultimate legal question of nonobviousness, beyond stating that it depends on the identified underlying factual considerations.32 Identifying the differences between the patent claims at issue and the prior art is one question. Determining the amount of inventiveness a person of ordinary skill in the art would need to bridge these differences, and whether such an amount meets the nonobviousness threshold, are separate issues. The Supreme Court’s application of its new nonobviousness framework to the facts in Graham likely exacerbated the problem created by the lack of a definitional basis for the nonobviousness standard. The patent at issue in Graham concerns a spring for a plow shank, which allows the plow shank to move upwards when it hits rocks or other obstructions in the soil, thereby reducing damage to the plow.33 The Court engaged in a detailed factual analysis of the relevant prior art in plow shanks and the differences between the prior art and the claims at issue.34 The Court did not, however, analyze the Graham, 383 U.S. at 17. Sakraida v. Ag Pro, Inc., 425 U.S. 273, 280 (1976); Graham, 383 U.S. at 17. 30 Graham, 383 U.S. at 17-18. The Federal Circuit has subsequently held that it is “error to exclude [secondary consideration] evidence from consideration.” Stratoflex, Inc. v. Aeroquip, 713 F.2d 1530, 1539 (Fed. Cir. 1983). 31 Sakraida, 425 U.S. at 280; Graham, 383 U.S. at 17. 32 FED. TRADE COMM’N, supra note 10, ch. 4, at 9 (“Although the Court lists the key......

Words: 31121 - Pages: 125

Premium Essay

Metamorphic Rocks

...Metamorphic Rocks University Of Phoenix By: Laurea Pruitt August 29, 2010 Where do metamorphic rocks originate? Metamorphic rock is produced from pre-existing rock that is altered, but not melted by heat and pressure deep below the earth's surface. Common metamorphic rocks include marble, which forms from limestone, and slate from shale or mudstone. If the pressure and heat increase to the point where the rock melts, magma forms to produce new igneous rock. They originate from non-metamorphic rocks which get changed in some way; for example through pressure and temperature. Typically rocks that form near surface undergo progressive burial or seduction, exposing rocks to higher temperature and/or pressure conditions than they saw at formation. The changes in pressure and temperature cause the minerals to deform and recrystallize, and even involves changes in bulk chemistry addition or removal of chemical constituents like water and carbon dioxide. When you find metamorphic rocks at the surface of the earth, that means that either a lot of rock has eroded, exposing the rocks that were once much deeper in the crust, or there has been some really significant fault movement that has brought the rocks from deep in the crust toward the surface. Metamorphic rocks are formed from Igneous or sedimentary or both type of rocks due to excessive heat. The rocks first change their shape and size and then due to pressure, they become metamorphic rocks, Most metamorphic rock......

Words: 311 - Pages: 2

Free Essay

The Rock

...English 1301 21 Feb 2013 The Rock He is a three-time world wrestling federation champion and a two time intercontinental champion. He was born on May 2, 1972 is 6’5 and weighs 275 pounds. He goes by the name Dwayne Johnson, calls himself the “People’s Champion” and otherwise known as “The Rock.” Other than having the pretty face that Hollywood was looking for, The Rock had to go through many steps as an “actor” before he became well known. However, the rock graduated from the University of Miami as an all -American Football player. Right away, he was entered into the realm of entertainment. This in turn was called a secondary effect because The Rock being a football player was entertainment and attracted the media’s attention. He was ready to enter the world of a celebrity and a star. The public considers the Rock to be a celebrity being that he has gone from music, to commercials, to sports, and journalism. He has starred on Saturday Night Live, That 70’s Show, and will soon be featured in the sequel to “The Mummy” as the Scorpion King. He is an entertainer who loves performing for the crowd. As he himself said, “Always entertaining the fans and knowing that I’m entertaining them-that’s the goal, to entertain the fans and noth compares to that.” Each time he appears somewhere knew it adds to his popularity more and more. You start to conform to this so- called “reality.” The Rock plays many different roles and has many different names that one might wonder which he...

Words: 717 - Pages: 3

Premium Essay


...Rock Report Exercise Due Date: 4/1/2014 Name: Rianne Richter Class: 1121k Grade: /35 After you have finished Lab Exercises 4, 5, and 7, complete the following questions. You may have to refer to the exercises for assistance to locate specific answers. 1. Match the rock type with the correct statement describing its formation. (3 point). ❖ Found where the atmosphere or liquid water causes erosion and movement of rock pieces. Metamorphic Formation ❖ Found mostly near convergent tectonic plate boundaries where the P/T condition can be very high. Sedimentary Formation ❖ Found in places where the interior is so hot that rock melts and tehn cools again to form new rock. Igneous Formation 2. List the texture and mineral composition of each of the following rocks. (5 points). Granite: Schistosity; Quartz, K-feldspars, biotite. Marble: Non-foliated; Calcite. Sandstone: Clastic; Quartz, feldspare. Gneiss: Compositional Banding; Diorite or granite. Shale: Layered, fine-grained; Quartz. 3. Where would you expect to find the coarser textured igneous rocks, in a laccolith or in a lava flow? Why? (2 points) A laccolith, because rocks that are found in a lava flow cool too fast to form course faces. 4. Which of...

Words: 762 - Pages: 4

Free Essay

Ingenious Rocks

... AND METAMORPHIC ROCKS Rocks are in order to make it easier on people to confirm them in the future. This can be done in a numerous ways. Each rock type has their own specific ways, but there are two different aspect that apply to all. The particular and composition. These two, before with some others help to classify igneous, sedimentary, and metamorphic rocks. The First Group is Igneous rocks are historical first by construction. This is broken down mainly into grain size. First there are intrusive, or plutonic igneous rocks. These types of rocks cool within the crust and form large, visible crystals. The opposite would be extrusive, or volcanic rocks. “These rocks are characterized as either extrusive or intrusive”. Types of Extrusive Rocks Basalt is normally a dense, dark, massive rocks, high in calcium and iron magnesium- bearing minerals and low in quartz content. Andesite is an extrusive rock intermediate in composition between rhyolite and basalt. Andesite lava is of moderate viscosity and forms thick lava flows and domes. Rhyolite is a felsic extrusive rock. Due to the high silica content, rhyolite lava is very viscous. It flows slowly, like tooth paste squeezed out of a tube, and tends to pile up and form lava domes. Intrusive igneous rocks are made from silica and plagioclase. They tend to be grays and browns in color. And then, felsic rocks are light in color and contains with some amphibole and biotitew. Granite is an igneous rock composed mostly......

Words: 734 - Pages: 3

Premium Essay

Connecticut Law

...tragic and disturbing event, I looked at the Connecticut statutes to find the crimes Hayes and Komisarjevsky committed. Hayes and Komisarjevsky could be charged with the Connecticut statute, Sec. 53a-134. Robbery in the first degree: Class B felony. This statute states that: (a) A person is guilty of robbery in the first degree when, in the course of the commission of the crime of robbery as defined in section 53a-133 or of immediate flight therefrom, he or another participant in the crime: (1) Causes serious physical injury to any person who is not a participant in the crime; or (2) is armed with a deadly weapon; or (3) uses or threatens the use of a dangerous instrument; or (4) displays or threatens the use of what he represents by his words or conduct to be a pistol, revolver, rifle, shotgun, machine gun or other firearm, except that in any prosecution under this subdivision, it is an affirmative defense that such pistol, revolver, rifle, shotgun, machine gun or other firearm was not a weapon from which a shot could be discharged. Nothing contained in this subdivision shall constitute a defense to a prosecution for, or preclude a conviction of, robbery in the second degree, robbery in the third degree or any other crime. Hayes and Komisarjevsky both broke into the Petits’ home and caused the family physical harm with a dangerous instruments (baseball bat and gasoline). Hayes and Komisarjevsky could be charged with the Connecticut statute, Sec. 53a-59. Assault in the......

Words: 712 - Pages: 3

Premium Essay

On the Rocks

...Executive Summary: On the Rocks is a soft drinks bar which would be serving its customers with the most stimulating and exotic drinks that they have never tasted before. Our chilled and invigorating drinks would sure refresh the drinkers. On the Rocks provides fizzy drinks which are a combination of various other soft drinks along with other juices and ingredients. On the Rocks promises their customer by providing them with the best quality new flavored fizzy drinks at the fastest possible time. Our combination of different juices and soft drinks would surely make the drinkers feel fanatical. We have set up our business at different shopping malls and departmental stores. We are also available for weddings and parties. We are a small business who presents the drinks as we receive the customer’s order on the counter. Within no time our customers have their drink in their hands. We have basically focused the youngsters and kids who mostly enjoy fizzy drinks and like to try out new flavors. We have set up our business at the shopping malls and departmental stores as we can receive customers at the hub of the mall. We have done our marketing through flyers, brochures, and most probably word to mouth. We have Our competitors are the other stalls which are the hub of the shopping malls like the gola wala, the magic corn, ice cream, etc. We are currently working 10 hours, seven days a week. We intend to provide customer satisfaction in every possible way. In the near future, we......

Words: 1926 - Pages: 8

Free Essay

Rocks and Mineralas

...To geologists, a rock is a natural substance composed of solid crystals of different minerals that have been fused together into a solid lump. The minerals may or may not have been formed at the same time. What matters is that natural processes glued them all together. There are three basic types of rock: igneous, sedimentary, and metamorphic. Extremely common in the Earth's crust, igneous rocks are volcanic and form from molten material. They include not only lava spewed from volcanoes, but also rocks like granite, which are formed by magma that solidifies far underground. Typically, granite makes up large parts of all the continents. The seafloor is formed of a dark lava called basalt, the most common volcanic rock. Basalt is also found in volcanic lava flows, such as those in Hawaii, Iceland, and large parts of the U.S. Northwest. Granite rocks can be very old. Some granite, in Australia, is believed to be more than four billion years old, although when rocks get that old, they've been altered enough by geological forces that it's hard to classify them. Sedimentary rocks are formed from eroded fragments of other rocks or even from the remains of plants or animals. The fragments accumulate in low-lying areas—lakes, oceans, and deserts—and then are compressed back into rock by the weight of overlying materials. Sandstone is formed from sand, mudstone from mud, and limestone from seashells, diatoms, or bonelike minerals precipitating out of calcium-rich water. Fossils......

Words: 310 - Pages: 2

Premium Essay


...water bodies. | Arkose is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. | Syenite a coarse-grained gray igneous rock composed mainly of alkali feldspar and ferromagnesian minerals. | Tephrite is an igneous, volcanic (extrusive) rock, with aphanitic to porphyritic texture. | Monolith a large single upright block of stone, especially one shaped into or serving as a pillar or monument. | Peridotite is a dense, coarse-grained igneous rock, consisting mostly of the minerals olivine and pyroxene. | Amphibolite is a coarse-grained metamorphic rock that is composed of amphibole minerals and plagioclase feldspar. | Magnetite is a mineral and one of the three common naturally-occurring oxides of iron. | Rhyolite is an igneous, volcanic rock, of felsic (silica-rich) composition (typically > 69% SiO2 | Pelite is a term applied to metamorphic rocks derived from a fine-grained sedimentary protolith. | Turbidite a type of sedimentary rock composed of layered particles that have originated from the oceans. | Siltstone is a sedimentary rock which has a grain size in the silt range, finer than sandstone and coarser than claystones. | Pumice is a light-colored, extremely porous igneous rock that forms during explosive volcanic eruptions. | Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite. | Troctolite is a mafic intrusive rock type. It consists essentially of major but......

Words: 305 - Pages: 2

Premium Essay

Metamorphic Rocks

...CheckPoint: Metamorphic Rocks Metamorphism occurs when there is a mineralogical, textural, chemical, and structural change in rocks that happens when rocks are exposed to high temperatures and pressures. Metamorphic rocks originate from beneath the earth’s continental curst and above the earth’s mantel (Murck, Skinner, Mackenzie, 2008). This is where the per-exiting rocks are exposed to high temperature and pressure which spaces and forms them into metamorphic rocks. Formation of metamorphic rocks is influenced by the amount of time and at the rate high pressures and temperatures are applied to the rocks, and by the presence or absence of liquid. When rocks are subjected to high temperature some of its minerals began to recrystallize or involve chemical reactions that develop new minerals, however the composition of the rocks does not change (Murck, el at., 2008). As the temperature grade level of the metamorphism rises, new minerals began to form or at higher grade level the minerals disappear again (Murck, el at., 2008). The open space in rocks and sediments are called pores, and are usually filled with water or gas fluids. Fluids in pores expedite chemical reactions in metamorphism process, but if pore fluids are not present or are in small amounts the metamorphism process are much slower. Pore spaces are decreased when pressure builds and the fluid is pushed out of the rock, the fluid that is pushed out is often contain dissolved minerals, which can be......

Words: 425 - Pages: 2

Free Essay

Sedimentary Rocks

...Sedimentary Rocks Your Name Plate tectonics affect where sediment falls to the way that rocks are formed from the sediment. There are three different types of sediment rocks that are created in a similar manner but actual make up of each sediment rock is very different. There is clastic sediment that will form clastic sedimentary rock, chemical sediment that will form chemical sedimentary rock, and then there is Biogenic sediment that will eventually form Biogenic sedimentary rock. This happens in many different ways and plate tectonics help this process all along the way. “Divergent margins create rift valleys and passive continental margins. Colliding tectonic plates create structural basins and valleys associated with mountain ranges as a result of the folding and faulting of rock. Subducting plates form deep oceanic trenches along with volcanic arcs that may have back-arc basins. All of these locations are effective traps for sediment.” (From Sediment to Sedimentary Rock, 2008). Convergent plate boundaries can usually be found on the edges of high mountain ranges due to plate collisions. When pieces of the mountain breaks off it falls to low-lying areas as gravel and sand. Convergent plate boundaries lie in very low-lying trenches caused by the subduction of plates. The sediment will pile up quickly because these areas are so steep. Once sediment has settled it will then begin the process in becoming a rock. Sediment goes through a process call......

Words: 772 - Pages: 4