Results 51 to 60 of about 138,296 (212)

Strong geologic methane emissions from discontinuous terrestrial permafrost in the Mackenzie Delta, Canada

Scientific Reports, 2017
Arctic permafrost caps vast amounts of old, geologic methane (CH4) in subsurface reservoirs. Thawing permafrost opens pathways for this CH4 to migrate to the surface.
Katrin Kohnert, Andrei Serafimovich, Stefan Metzger, Jörg Hartmann, Torsten Sachs   +4 more
doaj   +1 more source

Manual for 70 mm hand-held photography from Skylab [PDF]

A manual and atlas used on the Skylab mission for hand-held photography are presented. The manual covers terrain, environmental, meteorological, and dim light photography while the atlas covers sections from the Army Map Service 1:40.000,000 world map, a
Dunkelman, L., Frey, H. V., Lowman, P. D., Jr., Shenk, W. E.   +3 more
core   +1 more source

Global distribution of canali on Venus

Journal of Maps
The surface of Venus shows an abundance of channels with constant widths along their lengths and a simple channel structure that are interpreted to have formed volcanically.
Sydney A. Bledsoe, Christian Klimczak
doaj   +1 more source

Effective mapping of large ignimbrites by using a GIS-based methodology; case of the Xáltipan ignimbrite from Los Humeros caldera, Mexico

Terra Digitalis, 2019
The Xáltipan ignimbrite records the largest single-eruption of the Trans-Mexican Volcanic Belt up to date (≥344 km3 uncompacted volume). As most large ignimbrites, this ignimbrite presents common challenges when mapping.
Jaime Alberto Cavazos-Álvarez, Gerardo Carrasco-Núñez   +1 more
doaj   +1 more source

Worldwide distribution of continental rock lithology: Implications for the atmospheric/soil CO2 uptake by continental weathering and alkalinity river transport to the oceans [PDF]

, 2003
The silicate rock weathering followed by the formation of carbonate rocks in the ocean, transfers CO2 from the atmosphere to the lithosphere. This CO2 uptake plays a major role in the regulation of atmospheric CO2 concentrations at the geologic ...
Amiotte Suchet, Philippe, Ludwig, Wolfgang, Probst, Jean-Luc   +2 more
core   +2 more sources

Geology of the Pleistocene volcano of Monte Amiata (Southern Tuscany, Italy)

Journal of Maps
Monte Amiata (305–231 ka; Italy) is an uncommon example of an entirely effusive silicic (mainly trachytic) composite volcano. A detailed geological map (1:25,000 scale) based on Unconformity Bounded Stratigraphic Unit criteria is presented accompanied by
Claudia Principe, Luigina Vezzoli, Sonia La Felice   +2 more
doaj   +1 more source

Washington Division of Geology and Earth Resources [PDF]

This website contains information about the geology of Washington State, provided by the Division of Natural Resources (DNR). It includes details about geologic hazards, such as earthquakes, volcanoes, landslides, tsunamis, and coal mine subsidence ...

core   +1 more source

Aquifer sensitivity map, Jo Daviess County, Illinois [PDF]

, 2000
Computer generated map./ "This map was prepared by the Illinois State Geological Survey, in cooperation with the Illinois Department of Commerce and Community Affairs and the Jo Daviess County Board.
McGarry, Christopher S., Riggs, Matthew H.   +1 more
core  

First Global Map of Mercury’s Surface Roughness Down to Kilometric Baselines: Implications for the Planet’s Geologic Evolution

The Planetary Science Journal
Surface roughness on Mercury is a crucial observable for characterizing Mercury’s geologic processes such as volcanism, impact cratering, and volatile sublimation.
Gaku Nishiyama, Frank Preusker, Adrien Broquet, Alexander Stark, Hauke Hussmann, Ernst Hauber, Nicola Tosi   +6 more
doaj   +1 more source

The geologic mapping of Venus using C-1 format: Sheets 75N254, 60N263 [PDF]

The results of geologic mapping of Venus, produced on the base of Magellan images, are presented. We submit two C-1 format geologic maps with the appropriate legend.
Shalimov, I. V.
core   +1 more source