|Latitude & Longitude (WGS84):||20° 3' 56'' South , 46° 58' 8'' East|
|Latitude & Longitude (decimal):||-20.06556,46.96889|
|Köppen climate type:||Cwb : Subtropical highland climate or temperate oceanic climate with dry winters|
|Name(s) in local language(s):||(Tampombohitra)|
A complex type LCT pegmatite worked for gem polychromatic tourmalines situated on the SE side of Mt. Tompoambohitra in the Sahatany Valley.
7 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
|Ectasian - Calymmian|
1200 - 1600 Ma
|Mesoproterozoic crystalline metamorphic rocks|
Age: Mesoproterozoic (1200 - 1600 Ma)
Lithology: Crystalline metamorphic 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. 
2050 - 2300 Ma
Age: Rhyacian (2050 - 2300 Ma)
Lithology: Plutonic and metamorphic
Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM.