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 ?
Grabens are nothing but small indentations on a planet's crust.
3D) consisting of graben and horst blocks in the upper part of the scarp and a double monocline with the crestal sectors affected by subvertical and oversteepened normal faults (Gutierrez et al.
Simitli graben is defined by two parallel antithetic structures--Krupnik Fault and Gradevo Fault, forming a common Krupnik-Gradevo fault system with a general orientation of 40[degrees].
The Timiskaming Graben (TG) parallels the Ontario-Quebec border and is structurally defined by the Cross Lake Fault and the Quinze Dam Fault (Fig.
En la interpretacion de la estructura del graben de la Ciudad de Guatemala, las fallas de Mixco y Pinula, son fallas normales de gran angulo, aproximadamente paralelas de 20 km de largo, con una orientacion norte a noreste (Fig.
In the Late Neogene, increased subsidence of the northern part of the graben was marked.
During the Paleozoic, the Caiabis and adjacent Dardanelos graben were capped with sediments of the Dardanelos Formation which now form the hard sandstones topping the plateaux formed by the resistant grabens.
To the north, along the interpreted graben that hosts the known resource, the new IP data were merged with historic IP data done in 1983 and indicate possible extensions to the north of the existing pit.
This narrow graben is tri-radial, reflecting a rift junction system with rich sedimentation.
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.
This paper presents a synthesis of geological and paleoseismological information about the better documented active faults in the central-eastern Iberian Chain, including those bounding the Jiloca graben (Concud, Sierra Palomera and Calamocha faults), two large and well representative structures of the Teruel graben (Sierra del Pobo and Teruel faults), and a number of faults belonging to the Maestrat graben system, the easternmost extensional onshore ensemble (Fig.