Micronesia capital island6/7/2023 About 4,000 metric tonnes of copper ore, averaging 5.2 percent copper, was mined near Onean and Gatjapar on Gagil-Tomil Island and at Talangith on Maap Island during Japanese occupation. Gold grades up to about 4 grams per ton have been determined. Gold mineralization occurs in epithermal quartz veins and breccia and in hydrothermal iron oxide/silica rocks on Maap (also spelled Map) and on the Gagil-Tamil Islands in the Yap island group. Pohnpei is a high volcanic island that hosts the highest peaks in the FSM: Totolom (Dolohmwar) at 791 meters and Mt. The Yap islands consist of an elongate, approximately 24-kilometer-long, partially submerged and eroded volcanic edifice, encompassed by a fringing- to barrier-reef and lagoon complex. The coral islands within the lagoon and at the margins of the lagoon rise only about one meter above sea level. Within the lagoon are numerous coral and volcanic islands, the latter rising as much as 442 meters above sea level, some with fringing reefs. The Chuuk group of islands sits atop a submerged shield volcano, with a triangular lagoon approximately 55 kilometers on a side. Kosrae has a fringing reef with no inner lagoon. The degree of submergence has determined in part the type of reef surrounding the islands. The major islands of each state are the erosional remnants of long inactive volcanoes, now partially submerged. The cultures are as varied as the geography, and eight different languages are spoken. ![]() More than half of the population of approximately 108,000 lives in Chuuk State. Kosrae has 111.9 square kilometers of land and no lagoon. This extensive array of ancient structures was constructed from columnar basalt quarried on the main island. The impressive ruins at Nan Mandol on islets off southeastern Pohnpei date from about 1200 A.D. Pohnpei is mountainous, with 342.4 square kilometers of land area and 769.7 square kilometers of lagoon. It is a complex of 98 islands, 14 of which are volcanic, surrounded by a barrier reef enclosing 2,072 square kilometers of lagoon. Chuuk consists of seven major island groups, the largest being Chuuk proper. Yap is the westernmost state, and has a total land area of 118.9 square kilometers and lagoon area of 1,049 square kilometers. The 607 islands that constitute the FSM vary from high mountainous islands to low-lying coral atolls. ![]() The Kosrae, Pohnpei (formerly Ponape), Chuuk (formerly Truk), and Yap island groups now make up the four states of the FSM. FSM became an independent nation in November 1986, at which time the Compact of Free Association with the United States was established. In that year, the United States recognized the FSM constitution and the establishment of the Government of the FSM at both national and state levels. President appointed a High Commissioner to administer the Trust Territory, who in turn appointed a district administrator for each of the FSM States until 1979. The TTPI came under United States Department of the Interior administration in 1951. The Federated States of Micronesia (FSM), along with Palau, the Republic of the Marshall Islands (RMI), and the Commonwealth of the Northern Mariana Islands (CNMI) together constituted the TTPI. created the Trust Territory of the Pacific Islands (TTPI) in 1947. Japan began its formal administration by a League of Nations mandate in 1920. ![]() Germany administered the islands from 1899 to 1914, when Japanese naval squadrons took military possession of the Marshall, Caroline, and Northern Mariana Islands. When Spain withdrew from its Pacific insular areas, they were sold to Germany, except for Guam, which became a U.S. Spain claimed sovereignty over the Caroline Islands from 1886 to 1899. Spanish expeditions later made the first European contact with the rest of what came to be known as the Caroline Islands. In 1525, Portuguese explorers encountered Yap and Ulithi Islands during their search for the Spice Islands (Indonesia). Yap may possibly have been settled even earlier, its language suggesting settlers from more varied areas, possibly from the west as well. The earliest settlement of greater Micronesia is thought to have occurred about 2,000 years ago on the western mountainous islands, with immigrants arriving from the south. Island minerals: Phosphate/guano deposits, gold, copper, bauxite, aggregate.Political status: Independent nation in free association with the United States.Land area: 702 km 2 (607 islands, 4 states).Gross Domestic Product: $307 million (2015 est.) NOAA Coral Reef Ecosystem Program (CREP).NOAA Pacific Islands Fisheries Science Center (PIFSC).Federated States of Micronesia Map Data Links
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