Earth Sciences Division annual report 1990

Technical Report · Sat Jun 01 04:00:00 EDT 1991

DOI:https://doi.org/10.2172/138215· OSTI ID:138215

This Annual Report presents summaries of selected representative research activities grouped according to the principal disciplines of the Earth Sciences Division: Reservoir Engineering and Hydrogeology, Geology and Geochemistry, and Geophysics and Geomechanics. Much of the Division`s research deals with the physical and chemical properties and processes in the earth`s crust, from the partially saturated, low-temperature near-surface environment to the high-temperature environments characteristic of regions where magmatic-hydrothermal processes are active. Strengths in laboratory and field instrumentation, numerical modeling, and in situ measurement allow study of the transport of mass and heat through geologic media -- studies that now include the appropriate chemical reactions and the hydraulic-mechanical complexities of fractured rock systems. Of particular note are three major Division efforts addressing problems in the discovery and recovery of petroleum, the application of isotope geochemistry to the study of geodynamic processes and earth history, and the development of borehole methods for high-resolution imaging of the subsurface using seismic and electromagnetic waves. In 1989 a major DOE-wide effort was launched in the areas of Environmental Restoration and Waste Management. Many of the methods previously developed for and applied to deeper regions of the earth will in the coming years be turned toward process definition and characterization of the very shallow subsurface, where man-induced contaminants now intrude and where remedial action is required.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 138215
• Report Number(s): LBL--29700; ON: DE92000647
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
CHEMICAL PROPERTIES
COMPUTER CODES
FLOW MODELS
GEOCHEMISTRY
GEOLOGIC FRACTURES
GEOLOGY
GEOPHYSICS
GROUND WATER
HYDROLOGY
LAWRENCE BERKELEY LABORATORY
LEADING ABSTRACT
MATHEMATICAL MODELS
PERMEABILITY
PETROLEUM
PHYSICAL PROPERTIES
PROGRESS REPORT
RADIONUCLIDE MIGRATION
RESEARCH PROGRAMS
RESERVOIR ENGINEERING
SEISMIC EVENTS
SUBSURFACE ENVIRONMENTS
YUCCA MOUNTAIN
Yucca Mountain Project