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The process of determining a specific date (in years or some other unit of time) for an archaeological, geological or paleontological site or artifact. accident A sudden discontinuity of ground, such as a fault of great thickness, bed or lentil of unstable ground. [1] accretion A process by which material is added to a tectonic plate or ...
environmental indicator - physical, chemical, biological or socio-economic measure that can be used to assess natural resources and environmental quality. environmental impact assessment (EIA) - the assessment of the environmental consequences of a plan, policy, program, or actual projects prior to the decision to move forward with the proposed ...
Landscape ecology is a sub-discipline of ecology and geography that address how spatial variation in the landscape affects ecological processes such as the distribution and flow of energy, materials, and individuals in the environment (which, in turn, may influence the distribution of landscape "elements" themselves such as hedgerows).
Igneous formation processes; Sedimentary rock. Sedimentary formation processes (sedimentation) Quicksand; Metamorphic rock; Endogenic phenomena Plate tectonics. Continental drift; Earthquake; Oceanic trench; Phenomena associated with igneous activity. Geysers and hot springs; Bradyseism; Volcanic eruption; Earth's magnetic field; Exogenic ...
Solidified lava flow in Hawaii Sedimentary layers in Badlands National Park, South Dakota Metamorphic rock, Nunavut, Canada. Geology (from Ancient Greek γῆ (gê) 'earth' and λoγία () 'study of, discourse') [1] [2] is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. [3]
Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied. It is a multidisciplinary field of research and draws on environmental chemistry, physics, meteorology, computer modeling, oceanography, geology and volcanology and other disciplines.
[4] [5] The theory can be summarized by the phrase "the present is the key to the past." [6] Hutton also described the concept of deep time. The prevailing conceptualization of Earth history in 18th-century Europe, grounded in a literal interpretation of Christian scripture, was that of a young Earth shaped by catastrophic events.
Biogeochemistry is the scientific discipline that involves the study of the chemical, physical, geological, and biological processes and reactions that govern the composition of the natural environment (including the biosphere, the cryosphere, the hydrosphere, the pedosphere, the atmosphere, and the lithosphere).