" These geologic formations formed from large chunks of ice that broke away from the glacier as it retreated. Much like an iceberg, but on the land, these chunks of ice eventually melted and formed small lakes in the indentation formed on the ground where they lay. The largest of the kettle lakes is Lake Ronkonkoma, which formed some 17,000 years ago. ("Formation of Lake Ronkonkoma.")
The most drastic effects on the geology of Long Island came after the last Ice Age and the ocean levels rose. The large amount of melt-water flowed into Long Island Sound, and the shores of Long Island became inundated with water. Also, "the action of the waves and currents aided by the wind have eroded and reshaped the soft glacial sediments to form numerous sandy shoreline features." ("Geology of Long Island") This has caused the formation of a number of islands including Fire Island, Jones Beach, Long Beach, and others.
Originally formed from pre-Mesozoic rock sediments dumped during the Cretaceous period, Long Island underwent changes as a result of the most recent Ice Age. The Wisconsin stage of the Pleistocene left glaciers in the middle of Long Island, forming the two moraines...
Some of the grains weather to a pale green colour. In thin section, quartz is the major grain type (~50%) with some microcline (~5%) and some rock fragments (~1%) all in a fine matrix which consists of quartz and/or feldspar, mica and some calcite cement. The majority of the grains have a red-brown altered rim. The rock fragments are possibly reworked sediments" (p. 13). Lettergesh Analysis by Farrell indicates that this
ISLAND EARTHQUAKE PRONE? Earthquakes Exactly two years ago, a 3.9 magnitude earthquake struck off the coast of Long Island and New Jersey and caused no significant damage (Perez-Pena, 2010). In contrast, the largest quake on record (5.5) for the New York City area occurred in 1884, could be felt as far away as Ohio, Virginia, and Maine, and damage was limited to chimneys and cracked walls (USGS, 2009a). Strong earthquakes rarely
In fact, the entire damage was caused by the tsunami itself along with other factors like the geology and geography of the region. The damage that the tsunami caused to mainland India, a seismically quiescent region, was concentrated mainly on the eastern coastline but some damage due to diffraction also occurred on the southernmost tip of the western coastline. A factor which played a major role in the scale
LANDFORMS Barrier island beaches generally develop where: a The coast is composed of hard rock b the nearby land has a rugged topography of hills and mountains c the sea floor deepens rapidly offshore d The sea floor remains shallow for a long distance offshore During storms in winter: a There is a higher percentage of fine-grained sand on beaches b More erosion occurs in bays than on headlands c Beaches are eroded d Beaches are
The U.S. protectorate of Guam is a part of Micronesia, as is Palau, the Marshall Islands, Kiribati, Nauru, and the Federated States of Micronesia, a nation that is a part of the Caroline Island group. Many of the Micronesian islands were settled as long as four thousand years ago, likely by Southeast Asians. Similarly, the Polynesian islands were once settled by Southeast Asians, who arrived via Indonesia. Polynesia, meaning "many
238 -- 273) Coasts: Define a beach. What is the shore face along a beach? What is littoral drift (long shore sediment transport)? What is difference between Groin and Jetty? Where would you find a tidal inlet? Give an example. What is wave refraction? Identify and describe a barrier island system. What is difference between an estuary and ocean area? A beach is a land formation along the ocean's shoreline. A
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