Initiation of the Magallanes foreland basin: Timing of the southernmost Patagonian Andes orogeny revised by detrital zircon provenance analysis
Geology
By: A. Fildani, T.D. Cope, S.A. Graham, and J. L. Wooden
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
New sensitive high-resolution ion microprobe-reverse geometry U-Pb detrital zircon data establish the timing of onset of foreland basin subsidence in the Magallanes basin and the age of the Patagonian Andes in southernmost Chile. Initiation of the Magallanes foreland basin is signaled by the abrupt occurrence of sandstone of the Punta Barrosa Formation, loosely dated as upper Albian-Cenomanian from biofacies assemblages. Detrital zircon analyses demonstrate that the Punta Barrosa Formation is not older than 92 ?? 1 Ma and that the linked Andean belt started forming in the Turonian.
Suggested Citation
Fildani, A., Cope, T., Graham, S., and Wooden, J.L., 2003, Initiation of the Magallanes foreland basin: Timing of the southernmost Patagonian Andes orogeny revised by detrital zircon provenance analysis: Geology, v. 31, no. 12, p. 1081-1084, https://doi.org/10.1130/G20016.1.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Initiation of the Magallanes foreland basin: Timing of the southernmost Patagonian Andes orogeny revised by detrital zircon provenance analysis |
| Series title | Geology |
| DOI | 10.1130/G20016.1 |
| Volume | 31 |
| Issue | 12 |
| Year Published | 2003 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geology |
| First page | 1081 |
| Last page | 1084 |