OR/14/025 Appendix 1

LAWLEY, R. 2014. User Guide: Soil Parent Material 1 km dataset. British Geological Survey Internal Report, OR/14/025.

European Soil Bureau Descriptions of Parent Materials

Major Class	Group	Type	Subtype
100 Consolidated clastic sedimentary rocks	110 psephite or rudite	111 conglomerate 112 breccia	1111 pudding stone
	120 psammite or arenite	121 sandstone 122 arkose 123 greywacke	1211 calcareous sandstone 1212 ferruginous sandstone 1213 clayey sandstone 1214 quartzitic sandstone/orthoquartzite 1215 micaceous sandstone 1216 feldspathic sandstone 1231 feldspathic greywacke
	130 pelite, agillite lutite or	131 claystone/ 132 mudstone siltsone	1311 kaolinite bentonite 1312
	140 facies rocks bound	141 flysch molasse 142	1411 sandy flysch clayey 1412 and silty flysch 1413 conglomeratic flysch
200 Sedimentary rocks (chemically precipitated, evaporated, or of organogenic or biogenic origin)	210 calcareous rocks	211 limestone	2111 hard limestone soft 2112 limestone marly 2113 limestone chalky 2114 limestone detrital 2115 limestone 2116 carbonaceous limestone 2117 lacustrine or freshwater limestone 2118 travertine/calcareous sinter 2119 cavernous limestone
		212 dolomite	2121 cavernous dolomite 2122 calcareous dolomite
		213 marlstone
		214 marl	2141 chalk marl 2142 gypsiferous marl
		215 chalk
	220 evaporites	221 gypsum 222 anhydrite 223 halite
	230 siliceous rocks	231 chert, hornstone, flint
		232 diatomite/radiolarite

300 igneous rocks	310 acid to intermediate plutonic rocks	311 granite 312 granodiorite 313 diorite 314 syenite	3131 quartz diorite 3132 gabbro diorite
	320 basic plutonic rocks	321 gabbro
	330 ultrabasic plutonic rocks	331 peridotite 332 pyroxenite
	340 acid to intermediate volcanic rocks	341 rhyolite 342 dacite	3411 obsidian quartz 3412 porphyrite
		343 andesite 344 phonolite 345 trachyte	3431 porphyrite (interm.) 3441 tephritic phonolite
	350 basic to ultrabasic volcanic rocks	351 basalt 352 diabase 353 pikrite
	360 dike rocks	361 aplite 362 pegmatite 363 lamprophyre
	370 pyroclastic rocks (tephra)	371 tuff/tuffstone 372 tuffite 373 volcanic scoria 374 volcanic breccia	3711 agglomoratic tuff 3712 block tuff 3713 lapilli tuff 3721 sandy tuffite 3722 silty tuffite 3723 clayey tuffite
		375 volcanic ash
		376 ignimbrite pumice
400 Metamorphic rocks	410 weakly metamorphic rocks	411 (meta‐)shale/ 412 argillite slate	4121 graphitic slate
	420 acid regional metamorphic rocks	421 (meta‐) 422 quartzite 423 phyllite mica schist gneiss 424 granulite 425 (sensu stricto) 426 migmatite	4211 quartzite schist
	430 basic regional metamorphic rocks	431 greenschist	4311 prasinite chlorite 4312 schist talc schist 4313
		432 amphibolite 433 eclogite
	440 ultrabasic regional metamorphic rocks	441 serpentinite	4411 greenstone
	450 calcareous regional metamorphic rocks	451 marble 452 calcschist, skarn