Sm-Nd dating of fluorite from the worldclass Montroc fluorite deposit, southern Massif Central, France
January 1, 2005
A three-point Sm-Nd isotope isochron on fluorite from the very large Montroc fluorite vein deposit (southern Massif Central, France) defines an age of 111??13 Ma. Initial ??Nd of -8.6 and initial 87Sr/86Sr of ???0.71245 suggest an upper crustal source of the hydrothermal system, in agreement with earlier work on fluid inclusions which indicated a basinal brine origin. The mid-Cretaceous age of ???111 Ma suggests the Albian/Aptian transition as the most likely period for large-scale fluid circulation during a regional extensional tectonic event, related to the opening of the North Atlantic ocean. ?? Springer-Verlag 2004.
Citation Information
| Publication Year | 2005 |
|---|---|
| Title | Sm-Nd dating of fluorite from the worldclass Montroc fluorite deposit, southern Massif Central, France |
| DOI | 10.1007/s00126-004-0453-9 |
| Authors | M. Munoz, W. R. Premo, P. Courjault-Rade |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Mineralium Deposita |
| Index ID | 70029059 |
| Record Source | USGS Publications Warehouse |