scholarly journals Subduction dynamics at the middle America trench : new constraints from swath bathymetry, multichannel seismic data, and 10BE

2003 ◽  
Author(s):  
Robyn K. Kelly
Keyword(s):  
Seismic Data ◽  
Swath Bathymetry ◽  
Middle America Trench ◽  
Middle America ◽  
Multichannel Seismic Data

scholarly journals Subduction May Recycle Less Water Than Thought

Eos ◽  
2021 ◽  
Vol 102 ◽  
Author(s):  
Sarah Stanley
Keyword(s):  
Seismic Data ◽  
Middle America Trench ◽  
Middle America

A new analysis of seismic data from the Middle America Trench suggests that previous calculations have vastly overestimated the total amount of water transported to the mantle worldwide.

A possible new hydrocarbon play, offshore central West Greenland

1998 ◽  
pp. 28-30
Author(s):  
Nina Skaarup ◽  
James A. Chalmers
Keyword(s):  
Seismic Data ◽  
Mineral Resources ◽  
Source Rocks ◽  
Bright Spot ◽  
Offshore Area ◽  
West Greenland ◽  
The Government ◽  
Structural Closure ◽  
Multichannel Seismic Data ◽  
Seismic Lines

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Skaarup, N., & Chalmers, J. A. (1998). A possible new hydrocarbon play, offshore central West Greenland. Geology of Greenland Survey Bulletin, 180, 28-30. https://doi.org/10.34194/ggub.v180.5082 _______________ The discovery of extensive seeps of crude oil onshore central West Greenland (Christiansen et al. 1992, 1994, 1995, 1996, 1997, 1998, this volume; Christiansen 1993) means that the central West Greenland area is now prospective for hydrocarbons in its own right. Analysis of the oils (Bojesen-Koefoed et al. in press) shows that their source rocks are probably nearby and, because the oils are found within the Lower Tertiary basalts, the source rocks must be below the basalts. It is therefore possible that in the offshore area oil could have migrated through the basalts and be trapped in overlying sediments. In the offshore area to the west of Disko and Nuussuaq (Fig. 1), Whittaker (1995, 1996) interpreted a few multichannel seismic lines acquired in 1990, together with some seismic data acquired by industry in the 1970s. He described a number of large rotated fault-blocks containing structural closures at top basalt level that could indicate leads capable of trapping hydrocarbons. In order to investigate Whittaker’s (1995, 1996) interpretation, in 1995 the Geological Survey of Greenland acquired 1960 km new multichannel seismic data (Fig. 1) using funds provided by the Government of Greenland, Minerals Office (now Bureau of Minerals and Petroleum) and the Danish State through the Mineral Resources Administration for Greenland. The data were acquired using the Danish Naval vessel Thetis which had been adapted to accommodate seismic equipment. The data acquired in 1995 have been integrated with the older data and an interpretation has been carried out of the structure of the top basalt reflection. This work shows a fault pattern in general agreement with that of Whittaker (1995, 1996), although there are differences in detail. In particular the largest structural closure reported by Whittaker (1995) has not been confirmed. Furthermore, one of Whittaker’s (1995) smaller leads seems to be larger than he had interpreted and may be associated with a DHI (direct hydrocarbon indicator) in the form of a ‘bright spot’.

Heat flow variations along the Middle America Trench

1989 ◽  
Vol 11 (1) ◽  
pp. 69-76 ◽  
Author(s):  
R. M. Prol-Ledesma ◽  
V. M. Sugrobov ◽  
E. L. Flores ◽  
G. Ju�rez M. ◽  
Ya. B. Smirnov ◽  
...  
Keyword(s):  
Heat Flow ◽  
Middle America Trench ◽  
Middle America ◽  
Heat Flow Variations

SeismicWaveTool: Continuous and discrete wavelet analysis and filtering for multichannel seismic data

2013 ◽  
Vol 184 (1) ◽  
pp. 162-171 ◽  
Author(s):  
J.J. Galiana-Merino ◽  
J.L. Rosa-Herranz ◽  
S. Rosa-Cintas ◽  
J.J. Martinez-Espla
Keyword(s):  
Wavelet Analysis ◽  
Seismic Data ◽  
Discrete Wavelet ◽  
Discrete Wavelet Analysis ◽  
Multichannel Seismic Data

Shallow anatomy of a continent–ocean transition zone in the northern South China Sea from multichannel seismic data

2012 ◽  
Vol 554-557 ◽  
pp. 18-29 ◽  
Author(s):  
Junjiang Zhu ◽  
Xuelin Qiu ◽  
Heidrun Kopp ◽  
Huilong Xu ◽  
Zongxun Sun ◽  
...  
Keyword(s):  
South China Sea ◽  
Transition Zone ◽  
South China ◽  
Seismic Data ◽  
Northern South China Sea ◽  
China Sea ◽  
Multichannel Seismic Data
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