Oxygen isotope evidence for shallow emplacement of Adirondack anorthosite
January 1, 1982
Oxygen isotopic analysis of wollastonites from the Willsboro Mine, Adirondack Mountains, New York reveals a 400-ft wide zone of 18O depletion at anorthosite contacts. Values of ??18O vary more sharply with distance and are lower (to -1.3) than any yet reported for a granulite fades terrain. Exchange with circulating hot meteoric water best explains these results and implies that the anorthosite was emplaced at relatively shallow depths,
Citation Information
| Publication Year | 1982 |
|---|---|
| Title | Oxygen isotope evidence for shallow emplacement of Adirondack anorthosite |
| DOI | 10.1038/300497a0 |
| Authors | J.W. Valley, J. R. O’Neil |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Nature |
| Index ID | 70011557 |
| Record Source | USGS Publications Warehouse |