نتایج جستجو برای: central graben

تعداد نتایج: 470793  

2013
Andrew M. Freed Paul K. Byrne Christian Klimczak Louise M. Prockter Carolyn M. Ernst Sean C. Solomon H. Jay Melosh Maria T. Zuber David M. Blair

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. [1] The Rachmaninoff, Raditladi, and Mozart peak-ring impact basins on Mercury display a distinctive pattern of tec...

2005
Peter M. Grindrod Francis Nimmo Ellen R. Stofan John E. Guest

[1] Radially fractured centers (RFCs) on Venus are distinctive, 100 km long radiating systems of graben, fissures, and fractures arranged around a central topographic high. We use cycle 1 and cycle 3 Magellan images to determine the depths and wall dip angles of several large radial graben, using two different methods, at four RFCs: Becuma Mons, Didilia Corona, H’uraru Corona, and Pavlova Coron...

2009
C. Klimczak A. L. Nahm R. A. Schultz

Introduction: Since its discovery during the first flyby of the MESSENGER spacecraft, the origin of Pantheon Fossae (PF), a complex structure consisting of radial graben in the center of the Caloris Basin, Mercury, has been intensely debated. Several studies looked at the larger context for its formation, where three different formation theories have been suggested, i.e. basin-interior uplift [...

Journal: Geopersia 2012
Abdolhossein Amini Ali Yassaghi Mohsen Ehteshami-Moinabadi

This paper presents evidence on Mesozoic inversion of basin bounding faults within the Taleqan-Gajereh-Lar Paleograben (TGLP) in Central Alborz Range. For this purpose, well documented stratigraphy data across the TGLP together with the new acquired structural data on the geometry and kinematics of the paleograben basin bounding faults are utilized. The TGLP has evolved through the Early and Mi...

2012
R. A. French C. R. Bina M. S. Robinson D. M. Jurdy

Small-scale lunar graben were discovered in 50 cm pixel scale Lunar Reconnaissance Orbiter Camera (LROC) images [1]. In this study, candidate graben are characterized and analyzed along with confirmed graben. This expanded set (n=92 in 12 groups) ranges from ~20 to 1800 m in length (average=302 m) and ~5 to 600 m in width (average=36 m), with 73% between 50 and 350 m long and 78% less than 20 m...

Journal: :Danmarks Geologiske Undersøgelse Serie B 1991

2007
Harald J. Leask Lionel Wilson Karl L. Mitchell

[1] The morphology of the Mangala Fossa graben forming the source of the Mangala Valles implies that two episodes of graben subsidence took place, each induced by lateral dike intrusion from Arsia Mons. Quantitative modeling suggests that graben boundary faults breaching the cryosphere provided pathways for water release from an underlying aquifer at a peak rate of 10 m s . In the first event, ...

2006
N. Kennett

The blockage of the Lg wave by crustal barriers such as continental margins and graben structures has long been recognized as providing a very useful tool for mapping large-scale lateral crustal variations along the propagation path. Numerical simulation of Lg-wave propagation in complex anelastic media using the pseudospectral method provides insight into the nature of the propagation process ...

2012
Thomas R. Watters Mark S. Robinson Maria E. Banks Thanh Tran Brett W. Denevi

Large-scale expressions of lunar tectonics—contractional wrinkle ridges and extensional rilles or graben—are directly related to stresses induced by mare basalt-filled basins1,2. Basin-related extensional tectonic activity ceased about 3.6 Gyr ago, whereas contractional tectonics continued until about 1.2 Gyr ago2. In the lunar highlands, relatively young contractional lobate scarps, less than ...

2012
David M. Blair Thomas R. Watters Christian Klimczak Paul K. Byrne Sean C. Solomon Maria T. Zuber Andrew M. Freed H. J. Melosh

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. [1] Images of Mercury's northern volcanic plains taken by the MESSENGER spacecraft reveal a large number of buried ...

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