• Thumbnail for Geologic record
    overall formations, geologic structures and local strata, calibrated by those layers which are widespread, a nearly complete geologic record has been constructed...
    9 KB (1,121 words) - 06:40, 12 February 2025
  • The geologic temperature record are changes in Earth's environment as determined from geologic evidence on multi-million to billion (109) year time scales...
    18 KB (2,096 words) - 20:07, 9 August 2024
  • Thumbnail for Geologic time scale
    The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological...
    177 KB (10,093 words) - 15:52, 8 June 2025
  • Thumbnail for Stratigraphy
    deposition of all rocks within a geological region, and then to every region, and by extension to provide an entire geologic record of the Earth. A gap or missing...
    11 KB (1,208 words) - 15:45, 1 April 2025
  • Thumbnail for Mississippian (geology)
    or Early Carboniferous, is a subperiod in the geologic timescale or a subsystem of the geologic record. It is the earlier of two subperiods of the Carboniferous...
    8 KB (509 words) - 00:04, 9 June 2025
  • golden spikes on geologic timescales represent internationally agreed upon references for the boundaries of the stages in the geologic timescale. These...
    8 KB (960 words) - 17:44, 7 September 2024
  • Thumbnail for Geological history of Earth
    The geological history of Earth follows the major geological events in Earth's past based on the geologic time scale, a system of chronological measurement...
    56 KB (6,509 words) - 20:12, 4 June 2025
  • Thumbnail for Principles of Geology
    affect the geology of the Earth comes from the Earth. The third rule is that celestial cycles do not impact the patterns of Earth's geologic record. Rule two...
    14 KB (1,546 words) - 22:22, 17 March 2025
  • surrounding rock did, or a rock that survived a destructive geologic process. Some geologic processes are destructive or transformative of structures or...
    4 KB (464 words) - 05:09, 9 June 2025
  • Thumbnail for Geology of the Grand Canyon area
    extinct desert. There are at least 14 known unconformities in the geologic record found in the Grand Canyon. Uplift of the region started about 75 million...
    58 KB (6,818 words) - 23:08, 3 June 2025
  • Thumbnail for Geologic province
    from the original on 7 June 2014. Retrieved 6 June 2014. Geologic Province Map of the World (NASA) Definitions for the Geologic Provinces (USGS) v t e...
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  • Thumbnail for Unconformity
    layer, but the term is used to describe any break in the sedimentary geologic record. The significance of angular unconformity (see below) was shown by...
    9 KB (904 words) - 09:23, 17 January 2025
  • Thumbnail for Geology
    often known as Quaternary geology, after the Quaternary period of geologic history, which is the most recent period of geologic time. Magma is the original...
    87 KB (9,679 words) - 01:13, 27 May 2025
  • Global Standard Stratigraphic Age (category Geologic time scales of Earth)
    sub-discipline of geology, a Global Standard Stratigraphic Age, abbreviated GSSA, is a chronological reference point and criterion in the geologic record used to...
    4 KB (454 words) - 05:48, 2 June 2025
  • Thumbnail for George Hrab
    "A Geologic Valentine: Episode #1". The Geologic Podcast. Archived from the original on September 26, 2011. Retrieved September 30, 2012. "Geologic Podcast:...
    66 KB (4,997 words) - 19:15, 9 June 2025
  • Thumbnail for Gravel
    Alluvial fans likely contain the largest accumulations of gravel in the geologic record. These include conglomerates of the Triassic basins of eastern North...
    18 KB (2,104 words) - 07:04, 31 May 2025
  • Thumbnail for Tephra
    within the geologic record. Tephra is any sized or composition pyroclastic material produced by an explosive volcanic eruption and precise geological definitions...
    18 KB (2,028 words) - 18:15, 4 May 2025
  • originated this way, possibly via parallel concepts in geology (geologic record) or palaeontology (fossil record). The term was used regularly by V. Gordon Childe...
    14 KB (1,706 words) - 13:09, 25 September 2023
  • Thumbnail for Aeolian processes
    areas of limited sand availability, they are poorly preserved in the geologic record. Where sand is more abundant, transverse dunes take the form of aklé...
    48 KB (6,014 words) - 04:04, 9 June 2025
  • Thumbnail for Alluvial fan
    frontage into just three enormous fans. Alluvial fans are common in the geologic record, but may have been particularly important before the evolution of land...
    41 KB (5,202 words) - 04:11, 26 May 2025
  • Thumbnail for Geology of the Death Valley area
    exposed geology of the Death Valley area presents a diverse and complex set of at least 23 formations of sedimentary units, two major gaps in the geologic record...
    57 KB (5,546 words) - 10:43, 8 June 2025
  • Thumbnail for Paleoecology
    organisms and/or interactions between organisms and their environments across geologic timescales. As a discipline, paleoecology interacts with, depends on and...
    10 KB (1,150 words) - 17:34, 18 November 2024
  • Thumbnail for Flood geology
    credited to the geologic column, which they ascribe to be about one year. Some flood geologists dispute geology's assembled global geologic column since...
    105 KB (13,047 words) - 10:37, 8 June 2025
  • Thumbnail for Historical geology
    reconstruct the geological history of Earth. Historical geology examines the vastness of geologic time, measured in billions of years, and investigates...
    14 KB (1,037 words) - 00:12, 19 March 2025
  • monsoon circulation was first proposed in 1973. The evaporites in the geologic record suggest vast and extensive regions of persistent dry conditions near...
    25 KB (3,327 words) - 17:54, 1 June 2025
  • Thumbnail for Pangaea
    Pangaea is the most recent supercontinent reconstructed from the geologic record and therefore is by far the best understood. The formation of supercontinents...
    54 KB (6,147 words) - 09:19, 5 June 2025
  • Chronostratigraphy (category Geologic time scales of Earth)
    the time of deposition of all rocks within a geological region, and eventually, the entire geologic record of the Earth. The standard stratigraphic nomenclature...
    6 KB (657 words) - 19:04, 2 March 2024
  • Thumbnail for Strath
    Strath (section In geology)
    it may also correspond to a former base level now preserved in the geologic record. When a river in a strath valley is rejuvenated by a drop in base level...
    7 KB (750 words) - 23:01, 26 April 2025
  • Thumbnail for Conglomerate (geology)
    fans and likely contain the largest accumulations of gravel in the geologic record. Breccias are similar to conglomerates, but have clasts that have angular...
    16 KB (1,837 words) - 18:58, 22 September 2024
  • Thumbnail for Neoproterozoic
    Neoproterozoic (category Geological eras)
    (2008). The Concise Geologic Time Scale. Cambridge University Press. p. 184. ISBN 978-0-521-89849-2. U.S. Geological Survey Geologic Names Committee (March...
    13 KB (1,264 words) - 01:51, 19 May 2025