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Topic: Geological


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In the News (Sat 2 Jun 12)

  
  Geological Microscopes - Your One-stop Shop for all your Geological Microscopy Needs
Geological Microscopes is your source for good quality polarizing microscopes, petrographic microscopes, and ore microscopes.
We provide a wide variety of microscopes for the geologist to study rocks and minerals in thin sections (thin enough to be translucent) and rocks and minerals in thick polished specimens (using an ore microscope).
Whatever your need is regarding a geological microscope, please be sure to give us a call as our skilled microscope sales staff would be happy to assist you.
www.geologicalmicroscopes.com   (368 words)

  
  Geology - Wikipedia, the free encyclopedia
In China, the polymath Shen Kua (1031 - 1095) formulated a hypothesis for the process of land formation: based on his observation of fossil shells in a geological stratum in a mountain hundreds of miles from the ocean, he inferred that the land was formed by erosion of the mountains and by deposition of silt.
By the 1700s Jean-Etienne Guettard and Nicolas Desmarest hiked central France and recorded their observations on geological maps; Guettard recorded the first observation of the volcanic origins of this part of France.
William Smith (1769-1839) drew some of the first geological maps and began the process of ordering rock strata (layers) by examining the fossils contained in them.
en.wikipedia.org /wiki/Geology   (1485 words)

  
 Palaeos Timescale: Detailed Geological Timescale
The Geological Time-Scale is hierarchical, consisting of (from smallest to largest units) ages, epochs, periods, eras and eons.
The Geological time-scale is usually represented as a vertical table to be read from the bottom up; the oldest eras and periods at the bottom, the youngest at the top.
Geologic Ages of Earth History - Jeff Poling - a detailed and up to date chart showing every era, period, epoch and age of the geological time scale, together with time when began and during in millions of years.
www.palaeos.com /Timescale/timescale.html   (543 words)

  
 GEOLOGICAL TIME SCALE
The numerically calibrated geologic time scale has been continuously refined since approximately the 1930s (e.g., Holmes, 1937), although the amount of change with each revision has become smaller over the decades (see fig.
The overall duration and relative length of these large geologic intervals is unlikely to change much, but the precise numbers may "wiggle" a bit as a result of new data.
Geologic time is finely subdivided through most of the Phanerozoic (see Harland et al.
www.geo.ucalgary.ca /~macrae/timescale/timescale.html   (665 words)

  
 September/October Geological Society of America Bulletin media highlights
Boulder, CO, USA -- Geology topics of interest include: Loma Prieta earthquake aftershocks (1989-1990) reveal the fault zone had the strength of normal crust instead of being abnormally weak; reconstruction of the Chicxulub ejecta plume; and analysis of the Araguainha peak-ring impact crater in central Brazil.
The origin of chaotic rock bodies or mélanges is commonly attributed to tectonic disruption and mixing of originally coherent sequences, gravitational submarine down-slope movements and shale diapirism, caused by the rising towards the sea floor of overpressured, fluid-permeated fine grained sediments.
The recognition of the role played by each of these processes in the geological record is problematic, due to the strong facies convergence of their products and to the fact that these mechanisms can coexist and interact in a complex way.
www.eurekalert.org /pub_releases/2007-09/gsoa-sgs092507.php   (3442 words)

  
 Hull Geological Society - home page
The Hull Geological Society was founded in 1888 and is now an educational Charity.
In recent years the Society has made contact with similar geological Societies in other parts of the country and has hosted field meetings for them, when local 'experts' lead the visiting party to quarries and the coast, as an introduction to the area.
The Fund shall be administered by the Officers and Committee of the Hull Geological Society.
www.fortunecity.com /greenfield/ecolodge/25/gsinfo.htm   (1228 words)

  
 Geology of the Wessex Coast - www.soton.ac.uk/~imw/
Geological fieldwork involves some level of risk; one part of this may come from chance events that are unpredictable and little can be done about it; another part of the risk, however, can be greatly reduced by awareness of hazards and good judgement based on experience.
Individuals and leaders should carefully consider the safety aspects on the occasion of their visit and in bad conditions be prepared to cancell or modify part or all of the field trip as is necessary for safety.
Descriptions of geological features, geomorphological features, discussion of coast erosion, coastal retreat, wave action, storms, storm surges, floods, coastal history and sea defences are given here in general terms for academic and educational purposes only and should stimulate discussion and dispute.
www.soton.ac.uk /~imw   (1740 words)

  
 AllRefer.com - Geological Survey, United States (U.S. Government) - Encyclopedia
Geological Survey, United States, bureau organized in 1879 under the Dept. of the Interior to unify and centralize the work already undertaken by separate surveys under Clarence King, F. Hayden, George W. Wheeler, and J. Powell.
In 1962 the bureau was authorized to conduct surveys outside the public domain.
The Geological Survey is also responsible for directing the National Geologic Mapping Program, using the most sophisticated of cartographic equipment for researching and compiling data.
reference.allrefer.com /encyclopedia/G/Geologic.html   (201 words)

  
 Meriam Library -- Map Collection
This index covers the detailed geologic maps of California which are distributed among the fourteen irregular issued map and monograph series published by the United States Geological Survey.
The index correlates U.S.G.S. geologic maps of California with 7.5’ and 15’ topographic quadrangles.
Information provided for each quadrangle are: series name and number of each report containing a geologic map of that quadrangle or portion of it, the extent of coverage of the area, and the scale for those maps made after 1981.
www.csuchico.edu /lbib/maps/cal_geo/indx_cal_geo.html   (218 words)

  
 Geological features of the Solar System - Open Encyclopedia   (Site not responding. Last check: 2007-10-27)
This is a directory of lists of geological features on other planets, moons and asteroids.
List of geological features on 243 Ida and Dactyl
List of geological features on Jupiter's smaller moons
open-encyclopedia.com /Geological_features_of_the_Solar_System   (71 words)

  
 The educational encyclopedia, geology, precambrian, cambrian, ordovician, silurian, devonian, carboniferous, permian, ...   (Site not responding. Last check: 2007-10-27)
Geologic ages of earth history a listing off all the geological time periods from the beginning to present
Geological periods paleozoic era, mesozoic era, cenozoic era
Geological time scale an intro to the Geological Timescale and dating the Earth's past, geology, dating, palaeontology, paleontology, evolution, earth history, stratigraphy, time-scale, timescale
users.telenet.be /educypedia/education/geology.htm   (558 words)

  
 Geological maps of Greenland on CD-ROM
The 1:500 000 geological maps of Greenland on CD-ROM consist of 11 out of 14 planned maps.
The geological maps on the CD-ROMs can be viewed with a number of facilities: zoom, map legend, coordinate reading, distance measuring and print, all with the use of click buttons.
The production of the 1:500 000 geological map of Greenland on CD-ROM has been carried out by the Geological Survey in collaboration with the Cartography De Schutter for the Bureau of Minerals and Petroleum, Government of Greenland.
www.geus.dk /departments/geol-mapping/map-cd-rom/gr-map-cd-rom-uk.htm   (268 words)

  
 Council for Geoscience (Geological Survey), South Africa   (Site not responding. Last check: 2007-10-27)
The Organizing Committee of the 21st Colloquium on African Geology (CAG21) invites all interested earth scientists to pre-register for the planned colloquim to be held in Maputo from 3-5 July, 2006 using the pre-registration form supplied.
The Council for Geoscience (CGS) is a South African National Science Council specializing in all fields of the geosciences (geophysics, seismology, geohydrology, regional geological mapping, engineering geology, mineralogy, geochemistry, palaeontology and economic geology).
The CGS will soon be undertaking a variety of large geological mapping projects in Africa as well as in Australasia.
www.geoscience.org.za /index.htm   (601 words)

  
 ODNR, Division of Geological Survey Home Page   (Site not responding. Last check: 2007-10-27)
The Division of Geological Survey is the state's oldest natural resources agency, established by the Ohio legislature in 1837.
The Division, known informally as the Ohio Geological Survey, has been in continuous operation since 1900 and is one of the seven originally chartered divisions of the Ohio Department of Natural Resources, which was created by the legislature in 1949.
The geologic maps, reports, and data files developed by the Division can be used by individuals, educators, industry, businesses, and government.
www.ohiodnr.com /geosurvey   (91 words)

  
 Geological Surveys and Associations-Earth Sciences & Map Library-University of California, Berkeley
Geological Surveys and Associations-Earth Sciences and Map Library-University of California, Berkeley
California Geological Survey (formerly: Division of Mines and Geology -CDMG)
Czechoslovakia Czech Geological Survey - Cesky Geologicky Ustav
www.lib.berkeley.edu /EART/surveys.html   (191 words)

  
 agc.htm
The AGC collects and disperses geologic data to its users.
This data consists of geologic maps, historical data concerning resources, various datasets, both paper and some electronic-based, concerning water, fossil-fuel, and mineral resources of Arkansas.
The data is available either as published or unpublished reports, summaries, open-file reports, and maps and may be purchased or viewed on-site.
www.state.ar.us /agc/agc.htm   (139 words)

  
 Geology Entrance   (Site not responding. Last check: 2007-10-27)
Exploring this series of exhibits will take you on a journey through the history of the Earth, with stops at particular points in time to examine the fossil record and stratigraphy.
The Geology Wing is organized according to the geologic time scale.
2) Read about the history of the geologic time scale, and find out more about how it is organized.
www.ucmp.berkeley.edu /exhibit/geology.html   (198 words)

  
 Geological Survey of Canada
The Geological Survey of Canada is a part of the Earth Sciences Sector of Natural Resources Canada.
The GSC is Canada's premier agency for geoscientific information and research, with world-class expertise focusing on geoscience surveys, sustainable development of Canada's resources, environmental protection, and technology innovation.
The work of the Geological Survey of Canada focuses on the following Priorities of the Earth Sciences Sector:
gsc.nrcan.gc.ca /index_e.php   (126 words)

  
 Yorkshire Geological Society, founded 1837
Most of it was carried out while he was an amateur, before he joined the Geological Survey in 1892.
The Proceedings is a biannual publication that caters for original research papers on all aspects of geology.
Emphasis is placed on: (i) papers relating to the geology of the north of England (but including aspects of more than local interest) and (ii) papers of general geological interest.
earth.leeds.ac.uk /ygs   (1640 words)

  
 Lecture 2 - Geological Time
Most geologists and especially paleontologists suffer from "physics envy" and are susceptible to bludgeoning by math and physics wielded by a strong physicist such as Kelvin.
In Kelvin's 1868 address on geological time he did just that and kept a lot of geologists from following the idea that the Earth was very very ancient.
Nor would he probably be prepared to affirm or deny that the extraordinary conditions which reside in the center of the sun may not set free a portion of this energy."
rainbow.ldeo.columbia.edu /courses/v1001/geotime2.html   (1826 words)

  
 Delaware Geological Survey
The Delaware Geological Survey's mission is, by statute, geologic and hydrologic research and exploration, and dissemination of information through publication and public service.
The goal of the Delaware Geological Survey is to provide objective scientific geologic and hydrologic information, advice, and service to our stakeholders.
This goal is accomplished by conducting geologic, hydrologic, and geologic hazard investigations and services and by continuing development of our infrastructure through basic data collection and computer-based data management and dissemination programs.
www.udel.edu /dgs   (192 words)

  
 Geological Society of America: Science - Stewardship - Service
Geological Society of America: Science - Stewardship - Service
Join Now and get an Extended Membership through 2008!
Note: Privacy Policy was updated 21 September 2005.
www.geosociety.org   (26 words)

  
 USGS Education
The U.S. Geological Survey provides scientific information intended to help educate the public about natural resources, natural hazards, geospatial data, and issues that affect our quality of life.
Learn how the USGS and other organizations in the San Francisco Bay region are preparing to commemorate the 100th anniversary of one of our nation's greatest disasters.
The Mendenhall Program provides an opportunity for postdoctoral fellows to conduct concentrated research in association with selected members of the USGS professional staff.
www.usgs.gov /education/index.html   (305 words)

  
 Geological Surveys.
CZECH REPUBLIK -- Czech Geological Survey / Cesky Geologicky Ustav.
CZECH REPUBLIK -- Czech Geological Survey - Geofond.
FINLAND -- Geological Survey of Finland / Geologian tutkimuskeskus.
www.uni-mainz.de /FB/Geo/Geologie/GeoSurv.html   (828 words)

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