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Posts tagged Mahajanga

Western Shoreline of Madagascar – April 4th, 2010

19.6S 44.2E

April 4th, 2010 Category: Image of the day, Rivers, Sediments

Madagascar - March 5th, 2010

Madagascar - March 5th, 2010

The west coast of Madagascar, composed of sedimentary formations deposited in several layers over time, is more indented than the east coast, especially in the northwest, thus offering a number of fine harbors sheltered from cyclones, such as the harbor at Mahajanga.

Deep bays and well-protected harbors have attracted explorers, traders, and pirates from Europe, Africa, and the Middle East since ancient times; thus, the area has served as an important bridge between Madagascar and the outside world.

Silting up of harbors on this coast, caused by sediment from the high levels of erosion suffered inland in Madagascar, is a major problem. Here, several rivers can be seen spilling golden, tan and rusty red sediments into the Mozambique Channel.

The broad alluvial plains found on the coast between Mahajanga (Majunga) and Toliara (Tuléar), which are believed to have great agricultural potential, are thinly inhabited, in many places covered with swamps of Madagascar mangroves, and remain largely unexplored, although they are the subject of growing minerals and hydrocarbons exploration activity.

The giant oil fields of Tsimiroro (heavy oil) and Bemolanga (ultra heavy oil) lie towards the west of the island.

Bombetoka Bay and Betsiboka River, Madagascar – February 28th, 2009

February 27th, 2009 Category: Image of the day, Rivers

Bombetoka Bay, Madagascar - February 19th, 2009

Bombetoka Bay, Madagascar - February 19th, 2009

Close-up of rivermouth

Close-up of rivermouth

Bombetoka Bay is a bay on the northwestern coast of Madagascar (left) near the city of Mahajanga, where the Betsiboka River flows into the Mozambique Channel.

Numerous islands and sandbars have formed in the estuary from the large amount of sediments carried in by the Betsiboka River, and have been shaped by the flow of the river and the push and pull of tides.

Along coastlines and on the islands, the vegetation is predominantly mangrove forests. In fact, Bombetoka Bay is home to some of Madagascar’s largest remaining communities of mangroves.