OpenLandMap lithology — Morocco, 250 m

Raster information

• Acid plutonic rocksSilica-rich igneous rocks formed deep underground, such as granite.1
• Basic plutonic rocksSilica-poor igneous rocks formed deep underground and rich in iron- and magnesium-bearing minerals, such as gabbro.3
• Carbonate sedimentary rocksRocks mainly composed of carbonate minerals, such as limestone and dolomite.5
• Intermediate plutonic rocksIgneous rocks formed deep underground with an intermediate silica content, such as diorite.8
• Intermediate volcanic rocksVolcanic rocks with a composition between acidic and basic rocks, such as andesite.9
• Metamorphic rocksRocks transformed in the solid state under high pressure and temperature.10
• Mixed sedimentary rocksA combination of sedimentary rocks with varied compositions and no clearly dominant lithological type.11
• Siliciclastic sedimentary rocksRocks formed by the accumulation of silicate fragments, such as sandstone, claystone and siltstone.13
• Unconsolidated sedimentsLoose deposits that have not been transformed into rock, such as sand, gravel, silt and clay.14
• Undefined lithologyArea where no precise or sufficiently reliable lithological class has been defined.15

Value represented by each pixel

Dominant lithology class

Unit

Lithology class code

Each pixel contains an integer code from 1 to 15 corresponding to the dominant lithology class of the area. Values are categorical and do not represent a quantity or an order of magnitude.