Papers 10000
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Abstract We support the very recent discovery of two impact craters under the ice of northwest Greenland (Hiawatha Glacier and Paterson). These discoveries are based mainly on geology and bedrock topography. We added an analysis of gravity field aspects (descriptors) in addition to the traditional gravity and magnetic anomalies. The gravity aspects (the Marussi tensor of the second derivatives, the gravity invariants and their special ratio, strike angles and virtual deformations) provide more c...
#1Pablo GrosseH-Index: 11
#2Sam PoppeH-Index: 5
Last. Matthieu KervynH-Index: 20
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#1Ryan Schultz (Stanford University)
#1Ryan SchultzH-Index: 14
Last. Ruijia WangH-Index: 4
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Abstract Hydraulic fracturing (HF) in the Duvernay Formation near Fox Creek, Alberta, Canada, has produced some of the most prolific clusters of induced seismicity. In this paper, we describe newly emerging clusters of events occurring in previously quiescent (and undeveloped) areas of the Duvernay Formation. In the Duvernay East Shale Basin, an industry supplemented waveform database is examined using a variety of seismological techniques. Here, strike-slip events as large as 4.18 ML have been ...
#1Weilin ZhangH-Index: 14
Last. Maodu YanH-Index: 12
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#1Vahid Entezar-Saadat (UT: University of Tehran)
Last. Hermann ZeyenH-Index: 21
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Abstract We present a comprehensive lithospheric model of the Black Sea comprised of thermal structure, sediment thickness, and depths to Moho and lithosphere-asthenosphere boundary (LAB). The crustal structure (depths to Moho boundary and basement) is first estimated via a simultaneous joint 3D nonlinear inversion of satellite gravity data and the Gzz component of gravity gradiometry tensors. The results are then used for detailed 2D iterative forward modeling of potential field data based on t...
#1Hongsheng LiuH-Index: 6
#2Yan ChenH-Index: 45
Last. Fang-Fang HuangH-Index: 3
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The Shibei pluton is a Late Jurassic granitic body in the South China Block (Fujian province), featured by macroscopically isotropic granite and undeformed margins, which are also characteristics for most of the Late Jurassic plutons in southeastern China. Our field observations, fabric investigations and gravity modelling allow us to decipher the internal structure, overall geometry, magma accumulation and emplacement processes of the Shibei pluton. Magnetic fabrics of the Shibei pluton can be ...
#1Pablo R. Franceschinis (Facultad de Ciencias Exactas y Naturales)
#2Augusto E. Rapalini (Facultad de Ciencias Exactas y Naturales)H-Index: 5
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Abstract Paleomagnetic, magnetic fabric and rock magnetic studies were carried out in the late Middle to early Late Cambrian Campanario Formation exposed in NW Argentina. The study also presents preliminary results from the Early Cambrian metasediments of the Puncoviscana Formation and from Mojotoro intrusive. A new paleomagnetic pole, C2, was computed for the Campanario Formation (23.6°N, 346.5°E, A95, 7.0°, N: 11 sites) from the localities of Tilcara (T), Terma de Reyes (R) and El Perchel (EP)...
#1Tamara N. Jeppson (UW: University of Wisconsin-Madison)H-Index: 9
#2Harold J. Tobin (UW: University of Wisconsin-Madison)H-Index: 28
Abstract We present an analysis of the wireline sonic logs acquired through Alpine Fault hanging wall rocks during the second phase of the Deep Fault Drilling Project (DFDP-2). Due to inaccuracy in the initial tool-processed slowness logs, a more robust reprocessing of the data using the slowness–time coherence method was required. The reprocessing of the data yielded slowness logs that provide a significantly better estimate of compressional and shear slowness. The average slowness values of co...
#1Xinyu Dong (SYSU: Sun Yat-sen University)
#2Wenhui Li (Ontario Ministry of Natural Resources)H-Index: 1
Last. Rui GaoH-Index: 20
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Abstract Various models have been proposed to explain formational mechanisms for the Himalayan orogeny but uncertainties remain concerning uplift processes and deeper crustal structure of the orogen. Imaging of the orogen's deep structure can help resolve these uncertainties. This paper describes one migrated deep seismic reflection profile across the eastern Yarlung-zangbo suture (YZS) at 92° E, which provides a high resolution image of crustal structure that reveals (1) Yarlhashampo dome is di...
#1Guido M. Gianni (UBA: University of Buenos Aires)H-Index: 10
#2Héctor P.A. García (National University of San Juan)H-Index: 3
Last. Laura Giambiagi (CONICET: National Scientific and Technical Research Council)H-Index: 20
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Abstract The southern Puna plateau is a conspicuous example of a high-elevation orogenic plateau in a non-collisional setting. This orogenic sector is currently located above an anomalously shallow subduction segment, in which timing and relation to upper-plate tectonics have been widely overlooked. This subduction segment, here referred to as the southern Puna shallow subduction (SPSS), is characterized by a ~200 km wide shallow area located at ~300 km from the trench at a depth of ~100–120 km ...
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