This lab report is on the trip to Montara beach were we studied sediments on the coast line. In figure 1 it shows the location of Montara beach, which is located south of San Francisco near Pacifica. The purpose of the trip was to discover layers of sediment and understand the properties of them, like grain size, composite, organization and so forth. As shown in figure 2 you can see that Montara beach has quaternary sediment, meaning its sediment is younger than what its surround by. This data helps geologist determine how old the rock is and what kind of geological events have occurred to it and near it. The observations of modern processes helps to interrupt ancient events by examining the sediment and looking at the way it was deposited to show where the sediment was once from and what it will from to later on. (Figure1 & 2)…
The Appalachians are a chain of mountains that run from eastern Newfoundland, Canada to Alabama, US. They are the result of three major orogenic events that divide, by means of major thrust faults, into separate provenances: the Valley and Ridge province, the Blue Ridge province, and the Piedmont, from West to East respectively. Each provenance formed at a different time and is comprised of regionally distinct lithologies (Chernicoff, 1995).…
1. The author and his colleagues wanted to use 375 million old rock, because in the 385 million year old rocks they found what look like fish. In the 365 million year old rocks they found amphibians that did not look like fish, so to find the change the look at the 375 million year old rock to find transition between the two. In their paleontology work in 2004 they found sedimentary rocks in Pennsylvania and on the east coast of Greenland, but their most successful rock was found in the Artic of Canada.…
8.Why was the discovery of no rocks older than 2 billion years old on the ocean floor so important?…
10 million years ago: Mountains formed in North America (Rockies, Sierra Nevada, Cascades, and Appalachians).…
The purpose of this course is to familiarize the student with the basic concepts of Geology.…
The dig had been full of surprises, trying to move the tools and volunteers safely down the 85-foot sinkhole had been a challenge. Moreover, the fossils found were well over 100,000 years old. The animals included an American lion, camel and mammoth. While the discovery in northern Utah was unique with over 300 complete fossils found to date, it was minor compared to what Samantha was looking at. As Mark her graduate student continued to remove small particles of sediment with a dentist pick, Samantha stood in wonder watching…
Moore et al describes the overall geologic environment of northern Alaska. The authors explain that this region of Alaska is particularly unique in that it lies entirely north of the Arctic Circle and it is the most coherent stratigraphy in Alaska. The region includes one of the major mountain ranges in Alaska, the Brooks Range, as well as some of the most important economic resources and reserves in the United States.…
“The Rocky Mountain National Park was established January 26, 1950 and covers a 415 square mile area, is seventy miles northwest of Denver, and attracts over three million people a year. The park is known for many of its majestic mountain views; The Park is home to wildlife such as Mule Deer, Elk, Moose, Bighorn Sheep, and Bear.”…
Rocky Mountain National Park is a park in Boulder, Colorado that was formed about 1.6 to 1.7 billion years ago from the collision of the North American plate and the Pacific Plate. Within Rocky Mountain National Park there are many other geologic features such as majestic mountain views, a variety of wildlife, varied climates and environments. The area occupied by the park has been repeatedly uplifted and eroded. Although many of its mountaintops have been flattened by ancient erosion, recent glaciation has left steep scars, U-shaped valleys, lakes, and moraine deposits. The Park's oldest rocks were produced when plate movements subjected sea sediments to intense pressure and heat. “The resulting metamorphic rocks (schist and gneiss) are estimated to be 1.8 billion years old. Later, large intrusions of hot magma finally cooled about 1.4 million years ago to form a core of crystalline igneous rock (mostly granite).”( NPS) The Rocky Mountain National Park also includes the Continental Divide, which is the hydrological divide of America that separates the watersheds that drain into the Pacific Ocean and the Atlantic Ocean.…
The Rocky Mountains are located along the east side of the Western Cordillera. They were formed by folding and faulting sedimentary rock. The area also contains many fossils. The Columbia Mountains are composed of mainly sedimentary rock with some intrusives of metamorphic rock. In addition, it too is located along the east of the Western Cordillera. The Interior Plateau consists of rugged plateaus divided by deep river valleys composed of metamorphic and igneous rock. It is located in the centre of the Western Cordillera. Lastly, the Coast Mountain Region is composed of igneous and metamorphic rock and it is found along the western side of the Western…
The last great episode of the mountain building uplifted the entire Appalachian mountain chain from Newfoundland, Canada to Alabama. The mountains then were much higher than they are today. As the African tectonic plate gradually pushed against the edge of the North American plate, the original layers of the rocks were bent, broken and folded by faults. Huge masses of older, deeply buried rock were pushed up and over younger rocks. This is known as the Great Smoky Fault.…
I chose to write my paper based off of the article “Geologic history of the central Mississippi River Valley area in a nutshell” written by Dr. Roy Van Arsdale. Dr. Van Arsdale starts his book off by saying that we often associate the Mississippi River Valley with the adventures of Lewis and Clark, through Mark Twain, and finally to where it is now, expansive farming. He goes on to explain that in order to really understand and grasp all that the Mississippi River Valley has to offer we must first look back into its history which goes back billions of years. Erosion has begun to eat away and remove rocks as well as the fossils that they contain that have formed throughout the Earth’s history. Which means that there are less and less rock specimens for us to sample and examine from the earlier years and this can be really inconvenient when trying to study and put the Earth’s deep time into the proper order.…
The cave was formed by an ancient wave that was covered by an inland sea about 35 miles long and 165ft deep 15,000 years ago. Late Archaic occupation represents a use of the cave as seasonal (summer-fall) base camp (Wills 1988a, 1988b). It was stated to be possible that by the time Horse Springs finally disappeared and bare that human habitation was few. The cave site became a low intensity use. Samples found of the maize in the U.S. Southwest it contained geological mass dating back ca.14, ooo - 10,500 B.P. but there is no evidence for human functional proof during that time period. But from evidence available information from the site from later excavations it stated that the oldest cultural components from the site was from “Buff Sand”…
As you conduct your research on the geologic time period you have chosen you should use this worksheet to help you organize your ideas. If you need more space use another sheet of paper. Do not lose this sheet as it must be turned in with your brochure.…