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Table 8 Rock/soil types [LITH PET] categories in GK500 dataset

From: A machine learning approach for mapping the very shallow theoretical geothermal potential

Description\(N_{\text {GK500}}\)\(N_{\text {soil samples}}\)Area (\(\text {km}^{2}\))
Amphibolites with diorite passages or a hornblende gneiss2265287.48
Slates with intercalations of dolomites, cornieules, gypsum, limestone, and sandstone6027.0
Phyllite slates with intercalations of sandstone and pudding stones820309.64
Ferruginous argillites49715.12
Breccia or limestone pudding stones7822.96
Breccia and pudding stones4030.04
Sandy limestones with siliceous limestones with marly shale levels2248761.64
Silicious limestones1634840.8
Limestones, sometimes marbled1124103.68
Conglomerates and breccia rich in sericite380105.68
Rivers, lakes25001377.6
Diorites and gabbros23164.52
Dolostones and Cornieules1750205.44
Dolostones with gypsum levels47442.44
Landslide and scree deposits78389903.68
Gneiss and micaschists rich in biotite and muscovite350331525.88
Gneiss rich in biotite or muscovite, sometimes chloritic, sometimes with calc-silicates rocks or quartzitic horizons (hornfels)70124.96
Gneiss rich in feldspar20313992.32
Gneiss rich in feldspar, schistous with sericite, epidote, and chlorite formation883443.12
Gneiss with two micas or biotite rich in feldspar and varied structures980679.4
Gneiss with two micas or biotite rich in feldspar, platelets52268.28
Gneiss with two micas or biotite, rich in feldspar, mainly homogeneous280252.56
Gneiss with two micas or biotite, with white, often green (phengite)220137.8
Gneiss with sericitic and chloritic schists29121278.0
Granite with passages of quartzitic diorite or quartzitic syenite1113823.84
Granite with sericite, epidote, and chlorite986526.52
Gravel and sand7547401500.08
Gravel and sand, sometimes clayey or silty7386361597.96
Hard and compact sandstone with marly shale and limestone phyllites189431096.04
Sandstone and marls with low to moderately consolidated pudding stone levels20770945.68
Quartz sandstone with sandy slates1507.2
Glauconite siliceous sandstone and echinoderm debris520126.2
Sandstone mainly calcareous and porous, with marl levels3623961622.92
Sandstone with marl levels8420482.8
Dolomitic marble23019.04
Marly and shale clay with limestone bench, dolomite, and sandstone162145226.32
Marls with breach levels with hard and sandy shells1034.96
Well-consolidated sandstone slabs510166.76
Marbles with sandstone levels with shell-rich breccia122335.84
Marls with sandstone levels, conglomerates, or poorly consolidated pebbles3766981146.72
Quartz Phyllites100.48
Phyllites with limestone micaschists2060765.84
Phyllites with limestone micaschists with limestone levels and marbled dolomites17036.68
Phyllites with limestone micaschists with greenstone levels101.04
Quartz porphyry59073.36
Porphyrites and porphyry tuffs15019.6
Breccia puddings with arkoses and sandstone800174.04
Pudding stones with breccia with arkoses and sandstone66221406.8
Peridotites and olivine rocks1808.48
Dolomitic rock, sometimes with limestone levels48019817.04
Limestone rocks in general, often with marly intercalations11755604636.2
Limestone rocks with dolomitic levels4864184.8
Limestone rocks with important levels of marl, shale, and marly limestone6281591370.96
Limestone rocks, often marly890480.68
Volcanic and pyroclastic rocks509.64
Sand, gravel, pebbles, and blocks45445457.28
Marly shale with calcareous phyllites and interbedded sandstone382791226.52
Marly shale with limestone phyllites with tuffitic sandstone levels42090.48
Green shale with passages of eruptive rocks or eclogites1735252.76
Clayey silts, with clay with sand levels264499686.24
Sand silts with gravel and blocks196216146331.44
Silts with silty sands, often clayey, mainly calcareous68170154.08
Amphibolite and gneiss mixing zone23030.72
  1. \(N_{\text {GK500}}\) is the number of polygons for each category and Area is the total area spanned by all polygons of the category. \(N_{\text {soil samples}}\) is the number of NABODAT soil texture points available in each category