Geology of the caribbean islands

Assuming that our island is not the mound of sand with a palm tree so loved by cartoonists, a long coastline indicates abundant exposures of rock, commonly well-exposed and accessible. The most common form of produce is the coral reef, which is found almost everywhere around the Caribbean Islands.

Google Earth is free and easy-to-use. Ultrasonic seismic profiles of the Cayman Trough reveal that the steep northern wall of the trench is virtually sediment free. This change happened during a relatively brief geological interval, the Late Oligocene Chattianand probably took just a few million years.

Major lakes, rivers, cities, roads, country boundaries, coastlines and surrounding islands are all shown on the map. The emplacement of the plutons led to the alteration of the TVG and the NCSG, producing a strongly deformed contact metamorphic aureole of amphibolite facies, that is, composed of a suite of minerals formed under conditions of medium to high temperature and pressure.

The geochemistry of the metavolcanics in the Parlatuvier Formation, Tobago: Aspects of the geology of Antigua images after Donovan et al. The term Lesser Antilles is often used to define an island arc that includes Grenada but excludes Trinidad and Tobago and the Leeward Antilles.

If you are interested in the Caribbean Islands and the geography of North America, our large laminated map of North America might be just what you need. The Commonwealth of the Bahamas is also in the Atlantic and is a full member of the Caribbean Community.

Other fauna includes bivalves, gastropods, echinoids, bryozoans, fragments of crabs and rare shark teeth Lewis and Donovan, ; Taylor and Foster, ; Donovan et al.

Geology of the Caribbean Islands

Guadeloupe, Martinique, and St. The changes in lithologies from southwest to northeast demonstrate a rare complete example of such an environmental transition in the Paleogene of the Antilles. However, the island status of the Isle of Wight is ephemeral — during times of low sea level, such as during glaciations, the Solent is just a river valley or lagoon, and it may be possible to walk and wade from Portsmouth to Ryde.

The map is a portion of a larger world map created by the Central Intelligence Agency using Robinson Projection. During the Pleistocene, there was normal, followed by reverse, movement along the Southern Tobago Fault System, which accounted for the deposition, and subsequent uplift and tilting, of the Pleistocene coral limestone, which is a raised reef.

Geological and geophysical data from the region suggest that the Cayman Trough is underlain by oceanic crust accreted along a short north-south spreading center located between the Oriente and Swan transform faults.

Relationships between localities not to scale. Geologic investigations of the Cayman Ridge have revealed that one of the initial known episodes of explosive volcanism in the Caribbean region occurred during the late Paleocene through the middle Eocene in the form of island arc volcanoes that extended from the Cayman Ridge to the currently-exposed Sierra Maestra range of eastern Cuba.

On close examination, this is found to be sandstone dominated by individual balanids and barnacle debris, with less common oysters and rare scallops. If you would like to share them with others please link to this page.

It has a mixed rock record of igneous mainly volcanic overlain by sedimentary rocks. Photo used with permission courtesy of R. A fossil shark from the Plio-Pleistocene of Tobago. Hell, Grand Cayman Island, is a unique formation which is characterized by jagged, spongy pinnacles of black-covered limestone.

It works on your desktop computer, tablet, or mobile phone. Occasional north westerlies affect the northern islands in the winter. Conclusion The Cayman Islands occupy one of the interesting geologic landscapes that Earth has to offer.

The Mesozoic metamorphic and igneous rocks that form the greater part of Tobago represent two stages of oceanic arc growth with an intervening phase of regional metamorphism.

Leeward Islands Map - Windward Islands Map - Satellite Image

Lens cap centre for scale. Despite the fact that Cayman Ridge does not have any active volcanoes presently, this ridge has experienced volcanic activity in the geologic past.

Caribbean Islands Map and Satellite Image

Although the ring of fire seems very dangerous and intimidating, the Caribbean Islands are still one of the top tourist vacation spots, attracting over 20 million tourists every year from all across the globe. E Rockly Bay Formation: Geologists are still conducting research on many aspects of the Islands, especially the volcanic activity, as it is one of the few places in the world with active volcanoes.

It is small, long and thin, oriented northeast-southwest, and is about 42km long by 12km at its widest. The Virgin Islands, Windward, and Leeward pretty much compose the Lesser Antilles, and these islands show most volcanic activity.Geology and Hydrogeology of the Caribbean Islands Aquifer System of the Commonwealth of Puerto Rico and the U.S.

Virgin Islands By ROBERT A. RENKEN1, W.C. WARD2, I.P. GILL3, FERNANDO GÓMEZ-GÓMEZ1, JESÚS RODRÍGUEZ-MARTÍNEZ1, and others REGIONAL AQUIFER-SYSTEM ANALYSIS—CARIBBEAN ISLANDS. Geology of the Caribbean Islands Have you ever wondered how the famous tropical land masses located in Central America, known as the Caribbean Islands, came to existence?

Well geologists have dated some of the rocks in the islands such as, Cuba and Trinidad, as far back as the Jurassic time period. Explore Caribbean Islands Using Google Earth: Google Earth is a free program from Google that allows you to explore satellite images showing the cities and landscapes of Caribbean Islands and the rest of the world in fantastic detail.

Table of Contents Introduction Cayman Island Geology Cayman Ridge Cayman Trough Cayman Geologic Tourism Conclusion References Introduction. Located in the western Caribbean Sea to the northwest of Jamaica, the Cayman Islands are a British overseas territory comprised of three islands.

Third, the geology of islands is commonly unique. The geology of the Isle of Wight is similar to that of the adjacent mainland of the south of England.

However, the island status of the Isle of Wight is ephemeral – during times of low sea level, such as during glaciations, the Solent is just a river valley or lagoon, and it may be possible to.

Geology of the Caribbean Islands Have you ever wondered how the famous tropical land masses located in Central America, known as the Caribbean Islands, came to existence? Well geologists have dated some of the rocks in the islands such as, Cuba and Trinidad, as far back as the Jurassic time period.

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Geology of the caribbean islands
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