The Setters Formation In The Pleasant Hill Valley, Delaware: Metamorphism And Structure
| Author(s) | Plank, M.O. | |
| Author(s) | Schenck, W.S. | |
| Date Accessioned | 2008-04-02T18:58:25Z | |
| Date Available | 2008-04-02T18:58:25Z | |
| Publication Date | 1997 | |
| Abstract | The Setters Formation, identified on the southeast side of Pleasant Hill valley in well Cb13-16, contains the prograde mineral assemblages (1) microcline, biotite, and sillimanite +/- garnet, and (2) microcline, biotite, sillimanite, and muscovite +/- garnet. These pelitic assemblages allow us to infer peak metamorphic conditions between 620° and 680°C and 4 to 6 kilobars pressure, if PH20/Pfluid is > 0.5. There is some evidence in the drill cuttings to indicate that partial melting accompanied the formation of sillimanite, thus constraining peak temperature to > 640°C. | en_US |
| URL | http://udspace.udel.edu/handle/19716/3172 | |
| Language | en_US | en_US |
| Publisher | Newark, DE: Delaware Geological Survey, University of Delaware | en_US |
| Part of Series | Report of Investigations | en_US |
| Part of Series | 56 | en_US |
| Keywords | Setters Formation | en_US |
| Keywords | pelitic assemblages | en_US |
| Keywords | Pleasant Hill valley | en_US |
| Keywords | metamorphic conditions | en_US |
| Keywords | sillimanite | en_US |
| Title | The Setters Formation In The Pleasant Hill Valley, Delaware: Metamorphism And Structure | en_US |
| Type | Technical Report | en_US |