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Posts tagged Albertine Rift

Volcanic Features Near Lake Kivu, DRC and Rwanda – June 20th, 2012

1.9S 29.1E

June 20th, 2012 Category: Image of the day, Lakes, Volcanoes

Democratic Republic of the Congo and Rwanda - January 9th, 2012

This wide-swath ASAR image shows volcanic features around Lake Kivu, one of the African Great Lakes. It lies on the border between the Democratic Republic of the Congo and Rwanda, and is in the Albertine Rift, the western branch of the East African Rift.

Visible as a bright white area on the northern shores of the lake, are the cities of Goma, in the Democratic Republic of the Congo, and Gisenyi, in Rwandu. Goma lies only 18 km due south of the crater of the active Nyiragongo Volcano.

Mount Nyiragongo is a stratovolcano in the Virunga Mountains associated with the Albertine Rift. It is located inside Virunga National Park, in the Democratic Republic of the Congo. The main crater is about two km wide and usually contains a lava lake.

Sediments in Southern, Swampy Section of Lake Albert, Uganda and DRC

1.7N 30.9E

January 4th, 2012 Category: Lakes

Uganda and the Democratic Republic of the Congo - December 25th, 2011

Lake Albert – also Albert Nyanza and formerly Lake Mobutu Sese Seko – is one of the African Great Lakes. It is Africa’s seventh-largest lake, and the world’s twenty-seventh largest lake by volume. Lake Albert is located in the center of the continent, on the border between Uganda and the Democratic Republic of the Congo.

Lake Albert is the northernmost of the chain of lakes in the Albertine Rift, the western branch of the East African Rift. It is about 160 km (100 mi) long and 30 km (19 mi) wide, with a maximum depth of 51 m (168 ft), and a surface elevation of 619 m (2,030 ft) above sea level.

Lake Albert is part of the complicated system of the upper Nile. Its main sources are the Victoria Nile, ultimately coming from Lake Victoria to the southeast, and the Semliki River, which issues from Lake Edward to the southwest. The water of the Victoria Nile is much less saline than that of Lake Albert. Its outlet, at the northernmost tip of the lake, is the Albert Nile (which becomes known as the Mountain Nile when it enters South Sudan).

At the southern end of the lake, where the Semliki comes in, there are swamps. Here, sediments can be seen tinging the waters in this section of the lake. Farther south loom the mighty Ruwenzori Range, while a range of hills called the Blue Mountains tower over the northwestern shore. The few settlements along the shore include Butiaba and Pakwach.

Volcanoes of Virunga Mountains and Lake Kivu, Rwanda

1.9S 29.1E

December 11th, 2011 Category: Lakes, Mountains, Volcanoes

Rwanda - December 10th, 2011

This orthorectified image shows Lake Kivu, one of the African Great Lakes. It lies on the border between the Democratic Republic of the Congo and Rwanda, and is in the Albertine (western) Rift, a part of the Great Rift Valley.

The lake covers a total surface area of some 2,700 km2 (1,040 sq mi) and stands at a height of 1,460 metres (4,790 ft) above sea level. Some 1 370 km2 or 58% of the lake’s waters lie within DRC borders. The lake bed sits upon a rift valley that is slowly being pulled apart, causing volcanic activity in the area, and making it particularly deep: its maximum depth of 480 m (1,575 ft) is ranked eighteenth in the world. The lake is surrounded by mountains.

Northeast of Lake Kivu are several volcanoes, all of which are part of the Virunga Mountains. Closest to the lake’s shores is Mount Nyiragongo, whose main crater is flanked by two other indentations. It is a stratovolcano that lies just west of the border with Rwanda.

Moving to the right, one can see the Mikeno Volcano, Mount Bisoke and Mount Karisimbi (clockwise from left) grouped together. In the upper right corner is Mount Sabyinyo, an extinct volcano. The summit of the mountain, at 3645 m, marks the intersection of the borders of the Democratic Republic of the Congo, Rwanda, and Uganda.

Idjwi Island in Lake Kivu, Rwanda and Democratic Republic of the Congo

1.9S 29.1E

October 11th, 2011 Category: Lakes

DRC and Rwanda - October 3rd, 2011

This orthorectified image shows Lake Kivu, one of the African Great Lakes. It lies on the border between the Democratic Republic of the Congo and Rwanda. Lake Kivu empties into the Ruzizi River, which flows southwards into Lake Tanganyika.

The lake is in the Albertine (western) Rift, a part of the Great Rift Valley. The large island visible parallel to the left edge of the image is Idjwi, belonging to the Democratic Republic of the Congo. At 70 km in length and with an area of 340 km², it is the second largest inland island in Africa, and the tenth largest in the world.

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