Debris-flow deposits of Early Miocene age, Deadman Stream, Marlborough, New Zealand.
Sedimentary Geology
By: D.W. Lewis, M.G. Laird, and R.D. Powell
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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
| 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 |
| Larger Work Title | Sedimentary Geology |
| First page | 83 |
| Last page | 118 |
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