geology, cyclothems are alternating stratigraphic sequences of marine and non-marine sediments, sometimes interbedded with coal seams. The cyclothems consist...
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Carboniferous (section Cyclothems)
thousands of metres thick and contain tens to hundreds of individual cyclothems. Cyclothems were deposited along continental shelves where the very gentle gradient...
110 KB (11,562 words) - 23:04, 13 August 2024
group were deposited. As with other Carboniferous series, it comprises cyclothems, or distinct cycles of sedimentary rock formation. Note: the names below...
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sedimentology of roof strata of surface and underground coal mines and cyclothems containing the fossils of upright and in situ tree trunks, geologists...
26 KB (3,393 words) - 22:32, 26 February 2024
from δ18O and δ13C values of molluscs from the Cretaceous Bearpaw marine cyclothem". Palaeogeography, Palaeoclimatology, Palaeoecology. 217 (1–2): 67–85...
150 KB (15,763 words) - 18:38, 6 August 2024
(also known as coal beds) are interbedded with other sediments in a cyclothem. Cyclothems are thought to have their origin in glacial cycles that produced...
122 KB (12,097 words) - 06:23, 11 August 2024
late Paleozoic ice house are likely responsible for the deposition of cyclothems. Glacials are characterized by cooler and drier climates over most of...
88 KB (10,417 words) - 21:00, 28 July 2024
Repeated cycles of inundation led to the development of a series of cyclothems; the laying down of layers of limestone, shale and sandstone with occasional...
15 KB (1,754 words) - 21:41, 16 July 2024
Appalachian highlands. Characteristic of the strata from this time are cyclothems: alternating marine and non-marine strata indicative of changes in sea-level...
3 KB (363 words) - 04:28, 19 November 2023
stratigraphy of Northern Midcontinent Shelf and biostratigraphic correlation of cyclothems". Stratigraphy. 10 (1–2): 7, TEXT-FIGURE 4. Retrieved 2024-06-02. "Geologic...
4 KB (262 words) - 18:37, 2 June 2024