Morille
Salamanca Province, Spanish Central System (Central Iberian Zone), Spain
SkarnsW
- Type
- Stratabound scheelite in reaction skarnoids
Small scheelite lenses in calc-silicate hornfels replaced by a skarnoid, in the Monterrubio Formation (quartzites, amphibolites, schists, gneisses), without adjacent granite. Long seen as exhalative or synmetamorphic, they are of Variscan perigranitic origin according to scheelite Sr and Nd, close to those of Los Santos. Coordinates estimated near the village of Morille. Indicative coordinates.
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.7109 ± 0.0001 | 0.7108 / 0.711 | 2 | scheelite (ore concentrate) Mean and standard deviation recalculated from 2 samples, Table 1. Initial ratios at 300 Ma. | Tornos et al. (2008), Geochemistry and origin of calcic tungsten-bearing skarns, Los Sant… |
εNd(t) in ε units (parts per 10,000) Values of the same system
Standard : CHUR
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −8.6 ± 0.1 ε | −8.7 / −8.6 ε | 2 | scheelite (ore concentrate) Mean and standard deviation recalculated from 2 samples, Table 1. Close to Los Santos: same Variscan source. | Tornos et al. (2008), Geochemistry and origin of calcic tungsten-bearing skarns, Los Sant… |
Deposits of the same type
- Los Santos Spain
- Azegour Morocco
- Scalittas Italy
- Santa Lucia (Buggerru) Italy
- Su Zurfuru Italy
- Rosas Italy
- Sarrabus Italy
- Medenec Czechia
Cite this page
IsoFind Atlas (2026). Morille, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/morille/ (accessed 2026-10-13).
@misc{isofind2026morilleisotopesignatures,
title = {Morille, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/morille/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13