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Thick-bedded Sandstone Facies in a Middle Basin-floor-fan Setting, Mount Messenger Formation, Mohakatino Beach, New Zealand

By
M. J. Arnot
M. J. Arnot
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G. H. Browne
G. H. Browne
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P. R. King
P. R. King
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Published:
January 01, 2008

Abstract

The Mohakatino River section contains some of the deepest water deposits of the North Taranaki section. Most of the section consists of thick-bedded sandstone and thinner interbedded siltstone and tuff. Paleontological data indicates a lower bathyal paleo- bathymetry (minimum water depth indicators suggest 1000–1500 m [3280–4921 ft]). The beds exposed on Mohakatino Beach form the lower portion of a fourth- or fifth-order cycle, and are inferred to have been deposited in a midfan setting on the basin floor. The basal sequence boundary of the cycle is exposed on the river bank (south side). Overlying cycles are visible in the adjacent hills. Overall sandstone morphology is sheetlike, which, together with general facies type, suggests that the Mohakatino deposits are equivalent to Mutti Type 1 turbidites (Mutti, 1985).

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Contents

AAPG Studies in Geology

Atlas of Deep-Water Outcrops

Tor H. Nilsen
Tor H. Nilsen
Desceased
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Roger D. Shew
Roger D. Shew
University of North Carolina
Wilmington, North Carolina
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Gary S. Steffens
Gary S. Steffens
Shell International E&P
Houston, Texas
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Joseph R. J. Studlick
Joseph R. J. Studlick
Maersk Oil America Inc.
Houston, Texas
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American Association of Petroleum Geologists
Volume
56
ISBN electronic:
9781629810331
Publication date:
January 01, 2008

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