Tombolo
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Tombolos are ridges of sand or pebbles that connect islands to the mainland. They are formed over time by longshore drift, which is the movement of beach materials like sand and pebbles along the coastline. When the direction of the coastline changes, beach materials continue to be transported in their original direction and build up underwater to create spits. As spits grow larger, they can eventually connect to nearby islands, forming tombolos like Chesil Beach, an 18-mile-long ridge of pebbles in the UK.
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A spit is formed through the process of longshore drift. As waves approach the shore at an angle, sediment is carried along the coast until it reaches a change in direction, such as a headland. The sediment builds up over time to form a sandbar that stretches out into the sea. Spits continue growing until reaching an area of fast water flow or change in wind direction. Sheltered water and salt marshes form behind the spit, providing habitat for wildlife.
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The document discusses various coastal landforms created by wave erosion and deposition along shorelines. It describes how alternating bands of hard and soft rock lead to the formation of headlands and bays through differential erosion. As waves erode the soft rock faster than the hard rock, an irregular coastline develops. Further erosion can form caves, arches, stacks, and stumps. Coves are formed when a stream cuts through a cliff, widening through erosion. Wave-cut platforms are flat terraces exposed when cliffs retreat inland. Longshore drift can build up spits, narrow accumulations of sand and gravel stretching from the shore into the sea.
L3 transportation deposition
This document provides information about coastal landforms created by depositional processes. Constructive waves deposit eroded material on beaches to build them up over time. Material such as sand and pebbles can be transported long distances by waves and currents. Landforms like spits, bars and tombolos form where material is deposited through processes like longshore drift. Spits develop where drift continues depositing material into the sea, and may join to the mainland or an island. The document includes diagrams and examples of different coastal features.
Beaches (teach)
A short description of beach formations and how they most commonly are formed. For elementary science students.
Coastal
The coastline marks the meeting point between land and sea which is constantly changing due to erosion, transport and deposition processes driven by wave energy. Waves transfer energy from wind to water, changing shape as they reach shallow areas, and can both erode coastlines through processes like abrasion or build them up through deposition. Sediment is transported alongshore and across shorelines by processes like longshore drift, forming coastal features such as beaches, spits and bars. Coastal management uses various methods like sea walls, beach replenishment or groynes to protect shorelines from erosion.
Easter island
More info at
http://nutcrackerman.com/2015/01/13/easter-island-a-paradise-for-anthropologists/
Easter Island appears regularly at the scientific papers, because of its particular characteristics as an extremely isolated small world, and the huge potential it has to study its colonization, the rise and the demise of its native population and its ecology. For me it is a special pleasure to write about it, because I was a visitor of Easter Island and am still impressed about what I saw and learned there.
Rocks
This document discusses and provides examples of different types of rocks found in California, including metamorphic, igneous, and sedimentary rocks. It describes finding white marble in Los Gatos Creek, serpentine in the hills of Parkfield, sandstone formations in Coalinga, a conglomerate rock with bone particles near Coalinga's oil fields, and granite and pegmatite on the shore of Kaweah Lake in Visalia. The document also provides some geological context and background about the locations.
Field Assignment Part 1
Travis Maynard collected rock samples from Pismo Beach, CA and Coalinga, CA for a field assignment. Pismo Beach is a coastal town with a variety of sedimentary rocks due to water erosion. Coalinga is located in the central valley between Los Angeles and San Francisco, and was once under sea level, so there are coastal rocks and fossils. The majority of samples came from around Coalinga and Los Gatos Canyon 13 miles outside of Coalinga. The document identifies and classifies different igneous, metamorphic and sedimentary rocks in the samples.
Fieldlab1
Travis Maynard collected rock samples from Pismo Beach, CA and Coalinga, CA for a field assignment. Pismo Beach is a coastal town with a variety of sedimentary rocks due to water erosion. Many of Travis' samples came from locations around Coalinga and Los Gatos Canyon, which were once under sea level. The samples included igneous, metamorphic and sedimentary rocks that Travis analyzed and identified.
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Ann C Cloutier Masters GS Geomorphology Of Gooseberry Island June 2009 copyright
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Russia has a population of over 138 million people, with ethnic Russians making up about 80% of the population. While Russia shifted after the fall of the Soviet Union towards democracy, it has recently moved towards a more centralized semi-authoritarian state under President Putin. Russia has significant natural resources, especially natural gas and oil, and relies heavily on its energy exports. It also has large investments in areas like defense, healthcare, and space exploration.
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J8 London
We provide a variety of solutions to help businesses. Our AI assistants can answer customer questions through natural conversations to provide 24/7 support. Our analytics tools help companies better understand customer behavior and needs to improve products and services. We also offer customized consulting to help organizations implement the right technologies for their specific needs and goals.
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Tombolo
- 1. Tombolo Longshore Drift moves material along the coast a ridge of sand and shingle joining the mainland to an island
- 4. "On Chesil Beach" novel by Iain McEwan.. "...Edward and Florence had always planned to wander the shingle .... 'They were going to collect stones along the way and compare their sizes to see if storms really had brought order to the beach.'