thumbnail

Debris-flow deposits of Early Miocene age, Deadman Stream, Marlborough, New Zealand.

Sedimentary Geology

By:
, ,
DOI: 10.1016/0037-0738(80)90032-9

Links

Abstract

Detailed analysis is presented of a conformable succession of conglomerates and sandstones lying between massive marine mudstones. The coarse sediments reflect deposition by a spectrum of subaqueous debris-flow mechanisms during an early pulse of tectonism that ultimately resulted in Plio-Pleistocene eversion of the Kaikoura Mountains. Sparse pebbly mudstones and rare sandy conglomerates show disoriented clasts and reflect high-viscosity flows and slurry- creep flow mechanisms. Other deposits have little mud matrix, hence appear to reflect low-viscosity flow processes. Common sorted sandstones and some conglomeratic sandstones show diffuse parallel lamination. Other conglomeratic sandstones show trough cross-bedding which we attribute to entrained bedload movement during intersurge episodes of debris flow. - from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Debris-flow deposits of Early Miocene age, Deadman Stream, Marlborough, New Zealand.
Series title:
Sedimentary Geology
DOI:
10.1016/0037-0738(80)90032-9
Volume
27
Issue:
2
Year Published:
1980
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
83
Last page:
118
Number of Pages:
36