graben


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Related to graben: rift valley

graben

(grah -ben) An elongated depression of land between two faults. Lunar graben are usually 1–2 km wide and may be hundreds of kilometers in length.

Graben

 

a portion of the earth’s crust that is sunken relative to surrounding areas along steep, often vertical fractures, usually faults. The largest system of graben in the world is found in East Africa (Great Rift Valley). In Western Europe the largest graben is the valley of the Rhine River. Grabens on a planetary scale are called rifts. Grabens with additional fractures at their edges, which form a series of steps, are called complex grabens.

graben

[′grä·bən]
(geology)
A block of the earth's crust, generally with a length much greater than its width, that has dropped relative to the blocks on either side.
References in periodicals archive ?
Kabagambe-Kaliisa notes that the current bidding round and past exploration activity account for only 20% of acreage in the Albertine Graben.
and where hydrocarbons could have left the Central Graben to start
The scientists'measurements also showed that the bottoms of the troughs on Vesta are relatively flat and slanted toward what's probably a dominant fault, much as they are in Earth-bound graben.
The Timiskaming Graben (TG) parallels the Ontario-Quebec border and is structurally defined by the Cross Lake Fault and the Quinze Dam Fault (Fig.
This narrow graben is tri-radial, reflecting a rift junction system with rich sedimentation.
source rock, most likely in the Central Graben, rather than being of
These graben add to the proof of recent geologic activity on the moon.
The graben tell us forces acting to shrink the moon were overcome in places by forces acting to pull it apart.
The Graben logistics centre will comprise around 110,000 sqm of storage and office space.
Uganda's oil resource in Lake Albertine Graben is so far estimated at 6oom barrels.
Hardman then goes on to tell the story on how the Viking Graben was finally drilled in 1971 and 1972 with the discovery of Brent and Beryl, respectively, creating the North Sea black gold rush.
The Euphrates River runs through Syria, along a geologically important graben, from Turkey in the north-west to Iraq in the south-east.