Discussion on modern and ancient continental hypsometries
Article Abstract:
Algeoand Wilkinson (1991) use hypsometric slopes for measuring elevation change rates with respect to fractional area. Because modern continents evince uniformslopes in the -50 m to +250 m with respect to the current sea level, such slopes may be used with past continental distributions. However, hypsometric slopes vary considerably within this range. Using the normalized hypsographic curve also results in better areal change estimates over larger sea-level changes. Finally, the Laurentian and Gondwanian blocks studied were not discrete units, neccesitating a recalculation of their flooding curves.
Publication Name: Journal of the Geological Society
Subject: Earth sciences
ISSN: 0016-7649
Year: 1992
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Discussion on modern and ancient continental hypsometries
Article Abstract:
A.R. Wyatt's comment that hypsometric slopes for individual continents have large variations over the -50 to +250 m range with respect to the current sea level is contentious. Taking continental area as constant results in linear hypsometric slope changes with increments in flooded areas for the above elevations. The this assumption is valid given that the physical dimensions of the blocks do not change with flooding. Aside from the difficulties in using the normalized hypsographic curve, it represents data fora single continent, whereas the hypsometric data used involved a group of continents.
Publication Name: Journal of the Geological Society
Subject: Earth sciences
ISSN: 0016-7649
Year: 1992
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Comment about this article or add new information about this topic:
Discussion on a guide to stratigraphical procedure
Article Abstract:
An analysis describing a guide to stratigraphical procedure is presented. The guide was supported by the Journal of the Geological Society's Stratigraphy Committee. It is argued the guide's biostratigraphy section lacks validity because it omits discussion of problems concerning biostratigraphical correlation and does not offer background on quantitative stratigraphical correlation. However, specialists who support the guide argue that it was not intended to be a standard basis for stratigraphical practice, but only as special topical reference.
Publication Name: Journal of the Geological Society
Subject: Earth sciences
ISSN: 0016-7649
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
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