ISS002 Earth Sciences Results Briefing, 14 February, 2002

ISS002 Earth Sciences Results Briefing
February 14, 2002

EAST AFRICAN RIFT

Click here to view the complete online collection of astronaut photography of Earth >>

ISS002-715-5 Straight-shored lakes of the Ethiopian rift segment of the East African rift system reflect control of the shorelines by faults; the lake bottoms have been dropped down tens to hundreds of feet. Ziway is the large lake to the NE, Abiyatta and Shala are in the SW, and Abaiuta is to the SE in this view. Lake Shala is the southwesternmost; Abiyata and Langano are the central pair; and Ziway is the larger northeastern one.

ISS002-723-8 This is the first-ever, near-nadir photo of the junction of the Lake Tanganyika rift valley and the Lake Rukwa transform fault valley. Lake Tanganyika changes trend from due N to NW, where faults of the transform system begin to interact.

ISS002-717-83 Detailed near-nadir shots such as this one of NW Lake Rukwa provide fundamental data for mapping interfering faults in remote and commonly cloud-covered regions. Colleagues at British Petroleum and at the Applied Geodynamics Laboratory (UT-Austin) are already using these data in their investigations of the Western Branch of the East African rift. Faults of several trends and senses of displacement are shown in the following view; hachures are on the downdropped sides of fault lines.

ISS002-717-81 Another first - details of volcanic vents of the Rungwe volcanic field and faults at the SW end of Lake Rukwa can be examined in this fine telephoto view of the junction of the Lake Rukwa transform fault zone with the Lake Malawi rift valley.

ISS002-717-84 Volcanic fields at rift-transform intersections are places where economic deposits of minerals are commonly localized. The gold mines of the Chunya district, the regular light patches around the Mbeya Range, have yielded between 2 and 8 million ounces of gold as of March 2001.

< Previous 1 Next >

This server is scheduled to be off starting the evening of Thursday October 10 and ending the morning of Tuesday October 15 to accommodate a scheduled power outage.

This service is provided by the International Space Station program and the JSC Astromaterials Research & Exploration Science Directorate.

Recommended Citation: Image Science and Analysis Laboratory, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .

NASA Responsible Official: Tracy Calhoun

Curator: jsc-earthweb@mail.nasa.gov

Contributors: Earth Sciences Web Team

National Aeronautics and Space Administration

Lyndon B. Johnson Space Center

International Space Station National Laboratory

Last Update:

Server: 1

ISS002-715-5	Straight-shored lakes of the Ethiopian rift segment of the East African rift system reflect control of the shorelines by faults; the lake bottoms have been dropped down tens to hundreds of feet. Ziway is the large lake to the NE, Abiyatta and Shala are in the SW, and Abaiuta is to the SE in this view. Lake Shala is the southwesternmost; Abiyata and Langano are the central pair; and Ziway is the larger northeastern one.
ISS002-723-8	This is the first-ever, near-nadir photo of the junction of the Lake Tanganyika rift valley and the Lake Rukwa transform fault valley. Lake Tanganyika changes trend from due N to NW, where faults of the transform system begin to interact.
ISS002-717-83	Detailed near-nadir shots such as this one of NW Lake Rukwa provide fundamental data for mapping interfering faults in remote and commonly cloud-covered regions. Colleagues at British Petroleum and at the Applied Geodynamics Laboratory (UT-Austin) are already using these data in their investigations of the Western Branch of the East African rift. Faults of several trends and senses of displacement are shown in the following view; hachures are on the downdropped sides of fault lines.
ISS002-717-81	Another first - details of volcanic vents of the Rungwe volcanic field and faults at the SW end of Lake Rukwa can be examined in this fine telephoto view of the junction of the Lake Rukwa transform fault zone with the Lake Malawi rift valley.
ISS002-717-84	Volcanic fields at rift-transform intersections are places where economic deposits of minerals are commonly localized. The gold mines of the Chunya district, the regular light patches around the Mbeya Range, have yielded between 2 and 8 million ounces of gold as of March 2001.

This service is provided by the International Space Station program and the JSC Astromaterials Research & Exploration Science Directorate. Recommended Citation: Image Science and Analysis Laboratory, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .
	NASA Responsible Official: Tracy Calhoun Curator: jsc-earthweb@mail.nasa.gov Contributors: Earth Sciences Web Team	National Aeronautics and Space Administration Lyndon B. Johnson Space Center	International Space Station National Laboratory Last Update:
Server: 1