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
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
Stratigraphy (redirect from Stratigraphical record)
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
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
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
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
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
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...
4 KB (164 words) - 16:16, 1 April 2025
Unconformity (redirect from Unconformity (geology))
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
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
George Hrab (redirect from Geologic Orchestra)
"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
Gravel (section In the geologic record)
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
Tephra (section Disciplines and fossil record)
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
Aeolian processes (redirect from Deflation (geology))
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
Alluvial fan (section Geologic record)
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
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
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
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
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
Pangean megamonsoon (section Geologic record)
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
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
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
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
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