• Geological Survey studies the geologic processes at work in the Great Lakes region because they have direct bearing on the use, management, development, and preservation of the shoreline. (usgs.gov)
  • The USGS initiated a 5-year study to document the timing and magnitude of prehistoric lake-level fluctuations, and to assess some of the important geologic processes responsible for severe erosion of the Illinois-Indiana shoreline. (usgs.gov)
  • During these trips, students study the geologic history of their field areas and learn important field skills such as geoscience data collection and interpretation, synthesizing geological histories, report writing, and geologic mapping. (mtsu.edu)
  • A FEM model for analysis of fully coupled multiphase flow, thermal transport and stress/deformation in geological porous media was developed based on the momentum, mass and energy conservation laws of the continuum mechanics and the averaging approach of the mixture theory over a three phase (solid-liquid-gas) system. (diva-portal.org)
  • Site investigations are important to establish a geological history and require researchers to characterize and understand geotechnical complexities that contribute to formation of the material, subsequent modification by deformation and diagenesis, as well as weathering processes. (gatan.com)
  • Sulawesi is a remarkable outdoor laboratory to study the complex processes toward the diversification of Tarsius because ( i ) the taxonomic diversity of this genus is by far greatest on this island and ( ii ) tarsiers presumably colonized the Sulawesi region during the Miocene ( 23 ), and thus could have been subject to microplate-tectonic movements as well as Pleistocene sea level changes. (pnas.org)
  • Deriving accurate interpretation from geochemical data typically requires balancing dimensional reduction, visualisation and representation of some geological reference frame. (c3dis.com)
  • The coupled THM behaviors of the bentonite barriers were satisfactorily simulated, and the effects and impacts of the governing equations, constitutive relations and property parameters on the coupled THM processes were understood in terms of more straightforward interpretation of physical processes at microscopic scale of the porous media. (diva-portal.org)
  • Geological reconstructions and progress in applying DNA sequence information to divergence dating now provide us with the tools and background to comprehend tarsier dispersal. (pnas.org)
  • By using ultra-thin slices of diamonds, Dorrit E. Jacob and her colleagues from the Macquarie University in Australia and the University of Sydney found the first direct evidence for the formation of diamonds by a process known as redox freezing. (eurekalert.org)
  • Thus, magnetostratigraphy no longer represents a dating tool based only on the geomagnetic polarity reversals, but comprises a set of techniques that includes measurements of all geomagnetic field parameters, environmental magnetism, rock magnetic and palaeoclimatic change recorded in sedimentary rocks, and key corrections to magnetic directions related to geodynamics, tectonics and diagenetic processes. (lyellcollection.org)
  • U.S. Geological Survey (USGS) scientists initiated a coastal study of Southern Lake Michigan in response to disastrous flooding in Chicago. (usgs.gov)
  • The study is a cooperative effort involving research staff from the Illinois State Geological Survey, the Indiana Geological Survey, Indiana University, Purdue University, Northeast Illinois University, the University of Illinois at Chicago, Oregon State University, the University of Washington, the University of Rhode Island, and the Woods Hole Oceanographic Institution. (usgs.gov)
  • Sample courtesy of Geological Survey Finland. (gatan.com)
  • While tens to hundreds of samples/analyses are commonly utilised to investigate specific geological problems, existing public geochemical databases allow thousands to millions of rock and mineral analyses to be investigated on a global scale. (c3dis.com)
  • A second step of the method involves determining from the spatial trajectory one or more points (P 1 , P 2 , P 3 ) with reference to the geological data whereat the trajectory changes direction in one or more layers of strata (F) of the subterranean region. (freepatentsonline.com)
  • To adequately characterize and understand geological materials, you must first ensure each specimen is of the highest quality to resolve the material interface and properly controlled so you manipulate it, when necessary, under environmental stimuli. (gatan.com)
  • As the major component of the biodiversity hotspot Wallacea ( 21 ), Sulawesi is a melting pot of Asian as well as Australian fauna, and its troubled geological past has promoted an extraordinary 98% of its nonvolant mammals being endemic to the island ( 22 ). (pnas.org)
  • 8. A drilling rig ( 40 ) operable to implement a method as claimed in claim 1, said method being operable to improve the accuracy of drilling a borehole with respect to a geological target zone. (freepatentsonline.com)
  • Geological site characterization is essential to prevent natural hazards, improve urban infrastructures and access to water, energy and mineral resources. (gatan.com)
  • This process continues today in both natural and artificial environment. (scribd.com)
  • Despite many studies on microbial ecology of lake ecosystems, significant gaps exist in our knowledge of how microbial and geological processes interact with each other. (openthesis.org)
  • Six processes (i.e. stress-strain, water flow, gas flow, vapor flow, heat transport and porosity evolution processes) and their coupling effects are considered, which not only makes the problem well-defined, but renders the governing PDEs closed, complete. (diva-portal.org)
  • Measurements of bluff recession, studies of evolution of beaches, and effects of manmade structures on erosion and sand transport contributed to a more complete understanding of the processes at work. (usgs.gov)
  • As the process continued the plant matter was protected from biodegradation and oxidation, usually by mud or acidic water. (wikipedia.org)
  • The work developed enables further in-depth research on fully coupled THM or THMC processes in porous media. (diva-portal.org)
  • As a result, all articles have their full and final citation information available as soon as the production process is complete. (springer.com)