Table 1. The geological classes and the lithologies included in each class.

Geology Class	Included Lithologies
Ultramafic: magnesium rich alkaline rock.	Serpentine, soapstone, pyroxenite, dunite, peridotite, talc schist
Mafic: quartz poor alkaline to slightly acidic rock.	Anorthosite, gabbro, diabase, basalt, diorite, andesite, syenite, trachyte, Metamorphic equivalents: Greenstone, amphibolites, epidiorite, granulite, bostonite, essexite
Acidic Granitic: quartz rich, acidic igneous and metamorphic rock.	Granite, granodiorite, rhyolite, felsite, pegmatite, Metamorphic equivalents: Granitic gneiss, charnocktites, migmatites
Acidic Sedimentary: fine to coarse grained, acidic sedimentary rock.	Mudstone, claystone, siltstone, Non-fissile shale, sandstone, breccia, conglomerate, greywacke, arenites, Metamorphic equivalents: slate, phyllite, pelite, schist, pelitic schist, granofel, quartzite
Acidic Shale: fine grained acidic sedimentary rock with fissile texture.	Fissile shale
Calcareous Sedimentary: Alkaline, soft sedimentary rock with high calcium content.	Limestone, dolomite, dolostone, other carbonate-rich clastic rocks, Metamorphic equivalents: Marble
Moderately Calcareous Sedimentary: Neutral sedimentary rock with some calcium.	Calcareous shale and sandstone, calc-silicate granofel, Metamorphic equivalents: calcareous schists and phyllite
Fine Sediment: fine-grained surficial sediments.	Unconsolidated mud, clay, drift, ancient lake deposits
Coarse Sediment: coarse-grained surficial sediments.	Unconsolidated sand, gravel, pebble, till.

The first eight are bedrock classes, and the last two are surficial classes.