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Mentawai > Topography

 

Topography

GEOGRAPHY

The Mentawai regency is formed by four islands : Siberut, Sipora, North Pagai, and South Pagai, lies 85 to 135 km off the coast of west Sumatera, Indonesia , Within 0 55 to 3 20 south and 98 31 to 100 40 East The total lands mass is about  7,000 square km,( Siberut 4,480 km2, Sipora 845km2,Pagai 1, 675 km2 ). Tua Pejat in Sipora Island is the Capital of Mentawai Regency.

Mentawai is a sedimentary islands  dominated by shales, silts, and malrs of relatively young age.The haviest rain April ( 290 mm ) and October ( 390 mm ) and relatively dry month in February ( 220 mm ) and June ( 220 mm ). Another geological process which appears to be continued is subsidence along the east coast  as well as in the reflected by the very irregular coastline, with many bays, capes,islets, and coralreefs. By contrast,the west coast is rather straight and is lined with virtual unbroken, broad sandy beaches for much of its length. This coast is directly exposed to the pounding sirf from the Indian Ocean, has fewer coral reefs and is not generally accessible by boat.

 

 

 GEOGRAFI

 Kabupaten Kepulauan Mentawai dibentuk oleh empat pulau  : Siberut, Sipora, Pagai Utara, dan Pagai selatan,terletak 85-135 km dati Pantai Sumatera Barat, antara 0 55 – 3 20 LS dan 98 31 – 100 40 BT dengan luas daratan Lebih Kurang 7.000 km2 ( siberut4,480 km2, Sopora 845 km2, Pagai 1,675 km2 ). Tuapejat di Pulau Sipora merupakan Ibu Kota Kabupaten.

 Mentawai adalah pulau sedimen yang berlumpur, bertanah liat campur kapur yang usianya relative muda. Curah hujan tertinggi terjadi padfa bulan April( 290 mm ) dan Oktober ( 390 mm ) sedangkan curah hujan terendah terjadi pada bulan Febuari ( 220 mm ) dan Juni ( 220 mm ). Proses pengendapan masih terus berlangsung di sepanjang pantai timur termasuk daerah perairan dalam. Proses tersebut ditandai oleh garis pantai yang tidak rata, berteluk, bertanjung, dan berpulau kecil dan berpantai karang. Pantai barat relatif lebih lurus, berpasir lebar, bergelombang besar, sedikit karang dan tidak umum dilayari.

 

 


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