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73:(another fossiliferous sedimentary rock) in fossil preservation, as coquinas are mainly composed of small fragments of broken and crushed shells. Lumachelles may or may not contain complete bivalves including the shell, or alternatively only internal molds. While the term is mostly used for bivalve accumulations, other hard-shelled organisms can be occasionally encountered, such as
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229:
Navarro, V.; Molina, J. M.; Ruiz-Ortiz, P. A. (2008). "Filament lumachelle on top of Middle
Jurassic oolite limestones: event deposits marking the drowning of a Tethysian carbonate platform (Subbetic, southern Spain)".
193:
Papazzoni, C. A.; Trevisani, E. (2006). "Facies analysis, palaeoenvironmental reconstruction, and biostratigraphy of the "Pesciara di Bolca" (Verona, northern Italy): An early Eocene Fossil-Lagerstätte".
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and accumulate over time, hence becoming fossilized. During or after sedimentation the shells or carapaces may be dissolved or eroded away, producing internal molds.
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Lumachelles can be originated when assambleages of organisms die in areas of high biological productivity, such as
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Evans, K. M. (1983). "Note on the age and fauna of the Lynton Beds (Lower
Devonian) of north Devon".
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97:. After death, individuals are transported along with
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196:Palaeogeography, Palaeoclimatology, Palaeoecology
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16:For the shell-based marble, lumachella, see
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35:, containing abundant bivalve individuals
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142:Lumachelle à Ostrea acuminata Formation
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58:containing partial to complete
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216:10.1016/j.palaeo.2006.05.011
27:Lumachelle samples from the
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18:Ammolite § Imitations
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244:10.1007/s10347-008-0158-0
65:that were accumulated by
356:Basaltic trachyandesite
336:Alkali feldspar granite
132:Fossiliferous limestone
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746:Banded iron formation
180:10.1002/gj.3350180403
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277:at Wikimedia Commons
208:2006PPP...242...21A
119:Paleontology portal
1102:Specific varieties
168:Geological Journal
69:. It differs from
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532:Nepheline syenite
273:Media related to
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1229:Rapakivi granite
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567:Phonotephrite
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67:sedimentation
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1204:Luxullianite
1184:Lapis lazuli
1129:Blue Granite
1056:Serpentinite
1031:Metapsammite
855:
781:Conglomerate
703:Trondhjemite
681:Trachybasalt
622:Pantellerite
522:Monzogranite
467:Hornblendite
452:Granodiorite
318:Igneous rock
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127:Fossil beach
91:river deltas
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1093:Whiteschist
984:Greenschist
964:Cataclasite
954:Amphibolite
881:Phosphorite
831:Itacolumite
756:Calcarenite
602:Quartzolite
537:Nephelinite
507:Lamprophyre
462:Harzburgite
420:Napoleonite
393:Charnockite
388:Carbonatite
378:Blairmorite
341:Anorthosite
275:Lumachelles
1294:Categories
1259:Teschenite
1244:Shonkinite
1219:Pietersite
1214:Novaculite
1124:Borolanite
1109:Adamellite
1026:Metapelite
994:Calcflinta
959:Blueschist
949:Anthracite
931:Wackestone
911:Travertine
856:Lumachelle
836:Jaspillite
791:Diamictite
713:Websterite
698:Troctolite
674:Benmoreite
634:Shonkinite
607:Rhyodacite
587:Pyroxenite
557:Peridotite
517:Lherzolite
492:Kimberlite
482:Ignimbrite
477:Icelandite
457:Granophyre
366:Shoshonite
238:: 89−102.
153:References
75:gastropods
52:lumachella
40:Lumachelle
1300:Limestone
1274:Variolite
1264:Theralite
1254:Tachylite
1239:Rodingite
1209:Mangerite
1189:Larvikite
1174:Jasperoid
1169:Jadeitite
1134:Epidosite
1088:Tectonite
1081:Soapstone
1046:Quartzite
1016:Migmatite
1001:Itabirite
979:Granulite
921:Turbidite
901:Sylvinite
896:Siltstone
886:Sandstone
871:Oil shale
851:Limestone
826:Gritstone
821:Greywacke
816:Geyserite
806:Evaporite
796:Diatomite
771:Claystone
736:Argillite
649:Tachylyte
617:Comendite
562:Phonolite
552:Pegmatite
527:Monzonite
502:Lamproite
497:Komatiite
437:Foidolite
398:Enderbite
361:Mugearite
252:129887735
137:Limestone
99:sediments
81:Formation
1249:Taconite
1224:Pyrolite
1149:Ganister
1119:Aphanite
1114:Appinite
1036:Phyllite
1021:Mylonite
989:Hornfels
969:Eclogite
866:Mudstone
841:Laterite
801:Dolomite
718:Wehrlite
693:Trachyte
686:Hawaiite
664:Tonalite
659:Tephrite
612:Rhyolite
577:Porphyry
547:Obsidian
432:Essexite
383:Boninite
373:Basanite
331:Andesite
105:See also
54:") is a
48:lumachel
44:lumacell
1269:Unakite
1199:Llanite
1164:Ijolite
1139:Felsite
1071:Suevite
906:Tillite
846:Lignite
786:Coquina
751:Breccia
644:Syenite
572:Picrite
487:Ijolite
447:Granite
415:Diorite
410:Diabase
326:Adakite
204:Bibcode
95:lagoons
87:beaches
71:coquina
63:fossils
60:bivalve
29:Miocene
1179:Kenyte
1154:Gossan
1051:Schist
1011:Marble
974:Gneiss
876:Oolite
741:Arkose
639:Sovite
629:Scoria
582:Pumice
542:Norite
512:Latite
442:Gabbro
427:Dunite
405:Dacite
351:Basalt
346:Aplite
250:
232:Facies
50:, or "
33:France
1144:Flint
1066:Slate
1061:Skarn
926:Varve
891:Shale
811:Flint
766:Chert
761:Chalk
248:S2CID
93:, or
916:Tufa
861:Marl
776:Coal
708:Tuff
1279:Wad
240:doi
212:doi
200:242
176:doi
31:of
1296::
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210:.
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172:18
170:.
89:,
77:.
46:,
304:e
297:t
290:v
254:.
242::
218:.
214::
206::
182:.
178::
20:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
