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
	460 rocks formed by contact metamorphis m	461 contact slate 462 hornfels 463 calcsilicate rocks	4611 nodular slate
	470 tectogenetic metamorphic rocks or cataclastic metamorphis m	471 tectonic 472 breccia 473 cataclasite mylonite

|- | rowspan="12" | 500

Unconsolidated deposits (alluvium, weathering residuum and

Slope deposits) | 510 marine and estuarine sands | colspan="2" | 511 pre‐ 5111 Tertiary sand

512 Quaternary 5121 Holocene coastal sand 5122 sand with shells Quaternary delta sand sand |- | 520 marine and estuarine clays and silts | colspan="2" | 521 pre‐ 5211 Tertiary clay Tertiary

522 Quaternary 5212 silt Holocene clay clay and silt 5221 Holocene silt Quaternary 5222

clay and silt |- | rowspan="2" | 530 fluvial sands and gravels | colspan="2" | 531 river terrace 5311 river terrace sand sand |- | colspan="2" | 532 or gravel flood 5312 river terrace gravel plain sand or 5321 flood plain sand gravel 5322 flood plain gravel |- | 540 fluvial clays, silts and loams | colspan="2" | 541 river clay and 5411 terrace clay and silt silt 5412 terrace loam

5413 floodplain clay and silt

542 river loam

543 overbank 5431 floodplain clay and deposits silt

5432 floodplain loam |- | 550 lake deposits | colspan="2" | 551 lake sand and delta sand

552 lake marl, bog lime

553 lake silt |- | 560 residual and redeposited loams from silicate

rocks

| colspan="2" | 561 residual loam 5611 stony loam

5612 clayey loam

562 redeposited 5621 running‐ground loam |- | rowspan="2" | 570 residual and redeposited clays

from calcareous rocks | colspan="2" | 571 residual clay 5711 clay with flints

5712 ferruginous residual clay

5713 calcareous clay

5714 non‐calcareous clay

5715 marly clay |- | colspan="2" | 572 redeposited 5721 stony clay clay |- | rowspan="3" | 580 slope deposits | colspan="2" | 581 slope‐wash alluvium |- | 582 | colluvial deposits |- | colspan="2" | 583 talus scree 5831 stratified slope