Subduction zone tectonic studies to develop concepts for the occurrence of sediment subduction (Phase 2): Volume 1
This is volume one of three volumes. The objectives of this study represent a continuation and refinement of the objectives addressed in Phase I. This study focuses on trying to define the tectonics of sediment subduction at the trench axis through the use of accepted plate tectonic principles and the application of new subduction theory. The fundamental methods include: (1) compilation of all available bathymetric data from our Global Marine Geophysical Data Collection for all major ocean trenches, (2) generation of stacked bathymetric profiles and corresponding navigational maps, and structural maps, (3) selection and analysis of appropriate seismic reflection and refraction profiles and additional supporting data such as side-scan sonar, SEABEAM, magnetic, gravity and drilling data, and (4) detailed study of selected trench regions in which data quality and/or quantity is exceptional. Phase II of this project represents a unique compilation and synthesis of existing data for the world's deep ocean trenches. The analysis of data and discussion of results in the context of current literature aids our understanding of the sediment distribution and nature of sediment deformation through various stages of plate convergence, the determination of whether sediments are subducted or accreted, and the evaluation of the controlling factors for sediment subduction and/or accretion. A discussion is included on forearc petroleum and natural gas hydrate resource potential. 128 figs.
- Research Organization:
- Texas A and M Univ., College Station, TX (USA). Geodynamics Research Inst.
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- AC21-83MC20213
- OSTI ID:
- 6988696
- Report Number(s):
- DOE/MC/20213-2816-Vol.1; ON: DE90000473
- Country of Publication:
- United States
- Language:
- English
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Subduction zone tectonic studies to develop concepts for the occurrence of sediment subduction (Phase 2): Volume 3
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Related Subjects
58 GEOSCIENCES
02 PETROLEUM
SEDIMENTS
DATA COMPILATION
SUBDUCTION ZONES
BATHYMETRY
GEOPHYSICS
GRAVIMETRY
NATURAL GAS HYDRATE DEPOSITS
OCEANIC CRUST
PETROLEUM DEPOSITS
PLATE TECTONICS
PROGRESS REPORT
RESERVOIR ROCK
RESOURCE POTENTIAL
SEAS
SEDIMENTATION
SEISMIC SURVEYS
STRUCTURAL MODELS
TOPOLOGICAL MAPPING
DATA
DOCUMENT TYPES
EARTH CRUST
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
INFORMATION
MAPPING
MINERAL RESOURCES
RESOURCES
SURFACE WATERS
SURVEYS
TECTONICS
TRANSFORMATIONS
030200* - Natural Gas- Reserves
Geology
& Exploration
580000 - Geosciences
020200 - Petroleum- Reserves
Geology
& Exploration