Skip to Main Content
Book Chapter

Introduction to the Cerro Toro Formation in the Silla Syncline

By
A. Bernhardt
A. Bernhardt
Search for other works by this author on:
W.H. Crane
W.H. Crane
Search for other works by this author on:
Published:
January 01, 2009

Abstract

Outcrop accessibility: easy Outcrop Coordinates: 51.1199°S, 72.9701°W Refer to outcrops 4 and 5 on location map

The Silla Syncline is located within the Torres del Paine National Park east of Lago Pehoe and south of Lago Nordenskjöld. The Cerro Toro Formation in the area comprises more than 1100 m of deep-water strata within which Crane (2004) recognized and mapped three major coarse-grained channel complexes. These correspond to the informally named Pehoe, Paine and Nordenskjöld members, from oldest to youngest (Figs. iii.1, iii.2).

The Pehoe channel complex, consists of two conglomerate units, Pehoe A and B, separated by a 100-m-thick sequence of thick-bedded sandstones and thin interbedded mudstone units (see outcrop #4). The Paine member is subdivided into the Paine A, Paine B, Laguna Negra debris flow deposit, and the Paine C (see outcrop #5). Paine C is the largest channel in the section with a width of 2.5 to 3 km and a minimum thickness of 200 m (Figs. iii.1, iii.3 and iii.4). The Nordenskjöld member is exposed as a near continuous, roughly circular outcrop in the axis of the syncline north of the park highway (Fig. iii.3). This member is divided into two major subdivisions, Nordenskjöld A and Nordenskjöld B, separated by a thick debris flow deposit (Figs. iii.1 and iii.4).

The various channel complexes throughout the Silla Syncline section shifted locations as they were emplaced. The

You do not currently have access to this article.

Figures & Tables

Contents

SEPM Field Trip Guidebook

Stratigraphic Evolution of Deep-Water Architecture: Examples of controls and depositional styles from the Magallanes Basin, southern Chile

Andrea Fildani
Andrea Fildani
1.
Chevron Energy Technology Company, USA
Search for other works by this author on:
Stephen M. Hubbard
Stephen M. Hubbard
2.
Department of Geoscience, University of Calgary, Canada
Search for other works by this author on:
Brian W. Romans
Brian W. Romans
1.
Chevron Energy Technology Company, USA
Search for other works by this author on:
J.A. Covault
J.A. Covault
1.
Chevron Energy Technology Company, USA
3.
Department of Geological and Environmental Sciences, Stanford University, USA
Search for other works by this author on:
W.H. Crane
W.H. Crane
1.
Chevron Energy Technology Company, USA
Search for other works by this author on:
A. Bernhardt
A. Bernhardt
3.
Department of Geological and Environmental Sciences, Stanford University, USA
Search for other works by this author on:
Z.R. Jobe
Z.R. Jobe
3.
Department of Geological and Environmental Sciences, Stanford University, USA
Search for other works by this author on:
D.A. Armitage
D.A. Armitage
3.
Department of Geological and Environmental Sciences, Stanford University, USA
Search for other works by this author on:
J.C. Fosdick
J.C. Fosdick
3.
Department of Geological and Environmental Sciences, Stanford University, USA
Search for other works by this author on:
M.R. Shultz
M.R. Shultz
1.
Chevron Energy Technology Company, USA
Search for other works by this author on:
J. Clark
J. Clark
1.
Chevron Energy Technology Company, USA
Search for other works by this author on:
D.R. Lowe
D.R. Lowe
3.
Department of Geological and Environmental Sciences, Stanford University, USA
Search for other works by this author on:
S.A. Graham
S.A. Graham
3.
Department of Geological and Environmental Sciences, Stanford University, USA
Search for other works by this author on:
SEPM Society for Sedimentary Geology
Volume
10
ISBN electronic:
9781565762923
Publication date:
January 01, 2009

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal