|Latitude & Longitude (WGS84):||42° 48' 15'' North , 1° 48' 9'' East|
|Latitude & Longitude (decimal):||42.80444,1.80250|
|Köppen climate type:||Cfb : Temperate oceanic climate|
|Name(s) in local language(s):||Carrière de talc de Trimouns|
|Other/historical region names associated with this locality:||Midi-Pyrénées|
Note Hoshino et al. (2008) have investigated the composition of dissakisite-(Ce) and allanite-(Ce) from this locality, and also publish 10 microprobe analyses from a single crystal. Their conclusion is that: Euhedral dissakisites from Trimouns dolomite mine, France, is compositionally-zoned. Back-scattered electron (BSE) images reveal that each of the described dissakisite crystals has three distinct compositional zones: normal zoned core (Mg-rich), oscillatory zoned middle (Ca-Al-rich) and homogeneous rim (Fe-ΣREE-rich). The latter zone with Fe2+> Mg corresponds to allanite-(Ce). Dissakisite-(Ce) also displays pronounced zoning in Fe/Mg which may suggest that the temperature of crystallization continuously decreased from core to rim. Each individual crystal will probably therefore contain both species. Allanite-(Ce) is generally considered to be darker than dissakisite-(Ce), but this is not a definitive way to distinguish between the minerals.
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
52 valid minerals. 2 (TL) - type locality of valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
174.1 - 201.3 Ma
|mostly detrital deposit|
358.9 - 419.2 Ma
|Paleozoic sedimentary rocks|
Age: Devonian (358.9 - 419.2 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.