369:
49:
183:
175:
206:
recommends classification by mineral content whenever possible, volcanic rock can be glassy or so fine-grained that this is impractical, and then the rock is classified chemically using the
210:. Basanite then falls into the U1 (basanite-tephrite) field of the TAS diagram. Basanite is again distinguished from tephrite by its normative olivine content and from
190:
Basanite is an aphanitic (fine-grained) igneous rock that is low in silica and enriched in alkali metals. Of its total content of quartz, feldspar, and feldspathoid (
383:
and basanites are found wherever alkaline magma is erupted. This includes both continental and ocean island settings. Together with basalts, they are produced by
194:), between 10% and 60% by volume is feldspathoid and over 90% of the feldspar is plagioclase. Quartz is never present. This places basanite in the basanite/
1602:
728:
432:
characterizes the late alkaline phase (rejuvenation phase) of volcanic islands, which often comes 3 to 5 million years after the main
569:
425:
lapilli. This has been interpreted as fresh magma injected into the magma chamber that may have helped trigger the eruption.
874:
791:
712:
677:
828:
766:
661:
729:"Geochemistry and Petrology of a Miocene Trachyte-Basanite Suite from Mt. Tsaratanana, Northern Madagascar"
595:"Magmatic water contents determined through clinopyroxene: Examples from the Western Canary Islands, Spain"
1881:
491:
1876:
736:
1891:
927:
907:
867:
1352:
486:
593:
Weis, Franz A.; Skogby, Henrik; Troll, Valentin R.; Deegan, Frances M.; Dahren, Börje (2015).
1317:
429:
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some 12,900 years ago, the final phase of the eruption, which tapped the deepest part of the
380:
1886:
606:
478:
199:
8:
191:
610:
482:
348:, as evident on the diagram used for TAS classification. Nephelinite is yet richer in Na
1148:
860:
504:
207:
198:
field of the QAPF diagram. Basanite is further distinguished from tephrite by having a
163:
159:
522:
1103:
824:
787:
762:
708:
657:
634:
575:
565:
384:
508:
1800:
1512:
1299:
1168:
624:
614:
557:
496:
469:
Le Bas, M. J.; Streckeisen, A. L. (1991). "The IUGS systematics of igneous rocks".
388:
286:
80:
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1372:
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392:
1805:
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127:
1870:
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707:(2nd ed.). Cambridge, UK: Cambridge University Press. pp. 139–148.
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53:
561:
1775:
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889:
230:
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119:
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1327:
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619:
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407:
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151:
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48:
823:(2nd ed.). Honolulu: University of Hawaii Press. pp. 152–154.
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20:
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1063:
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65:
19:
This article is about the igneous rock. Basanite is also a variety of
1845:
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Macdonald, Gordon A.; Abbott, Agatin T.; Peterson, Frank L. (1983).
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656:(2nd ed.). New York: W.H. Freeman. pp. 164–165.
178:
QAPF diagram showing the basanite/tephrite field in yellow
89:
800:
344:
O) compared to basalt, which typically contains more SiO
818:
682:
654:
Petrology : igneous, sedimentary, and metamorphic
592:
530:
British
Geological Survey: Rock Classification Scheme
104:
101:
92:
549:
450:
Pages displaying wikidata descriptions as a fallback
186:
TAS diagram with basanite/tephrite field highlighted
110:
86:
83:
821:Volcanoes in the sea : the geology of Hawaii
468:
1868:
545:
543:
756:
705:Principles of igneous and metamorphic petrology
523:"Rock Classification Scheme - Vol 1 - Igneous"
868:
757:Fisher, Richard V.; Schmincke, H.-U. (1984).
702:
540:
703:Philpotts, Anthony R.; Ague, Jay J. (2009).
670:
289:. The augite contains significantly greater
202:olivine content greater than 10%. While the
761:. Berlin: Springer-Verlag. pp. 19–20.
399:. They are particularly common in areas of
95:
875:
861:
651:
843:
806:
781:
628:
618:
490:
229:assembly in basanite is usually abundant
652:Blatt, Harvey; Tracy, Robert J. (1996).
367:
253:and lesser iron-titanium oxides such as
181:
173:
1869:
550:Carracedo, J. C.; V. R. Troll (2016).
856:
162:that solidifies rapidly close to the
599:Geochemistry, Geophysics, Geosystems
556:. Amsterdam, Netherlands: Elsevier.
218:content of over 5% and a normative
13:
882:
138:texture. It is composed mostly of
14:
1903:
1862:
684:. National Gallery of Art Library
553:The Geology of the Canary Islands
471:Journal of the Geological Society
786:. Berlin: Springer. p. 33.
79:
47:
812:
782:Schmincke, Hans-Ulrich (2003).
775:
428:Eruption of basanite and other
750:
721:
696:
645:
586:
515:
462:
387:volcanism, for example in the
379:Basanite appears early in the
363:
169:
56:of black basanite enclosing a
1:
455:
448: – type of volcanic rock
154:and forms from magma low in
7:
439:
10:
1908:
320:Chemically, basanites are
24:
18:
1673:
1511:
1298:
888:
46:
37:
501:10.1144/gsjgs.148.5.0825
25:Not to be confused with
928:Basaltic trachyandesite
908:Alkali feldspar granite
562:10.1016/C2015-0-04268-X
406:During eruption of the
376:
372:Basanite sculpture of
187:
179:
1318:Banded iron formation
381:alkaline magma series
371:
301:than that in typical
185:
177:
16:Type of volcanic rock
620:10.1002/2015GC005800
417:, produced basanite
611:2015GGG....16.2127W
483:1991JGSoc.148..825L
222:content under 20%.
160:alkali metal oxides
34:
1674:Specific varieties
377:
324:. They are low in
309:is absent, as are
208:TAS classification
188:
180:
32:
1882:Porphyritic rocks
1859:
1858:
1104:Nepheline syenite
846:, pp. 80–81.
759:Pyroclastic rocks
571:978-0-12-809663-5
436:-building phase.
356:O compared to SiO
303:tholeiitic basalt
72:
71:
1899:
1801:Rapakivi granite
1513:Metamorphic rock
1300:Sedimentary rock
1169:Quartz monzonite
877:
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863:
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835:
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735:. Archived from
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605:(7): 2127–2146.
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512:
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389:Hawaiian Islands
269:may be present.
249:, together with
158:and enriched in
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1898:
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1855:
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1613:Pseudotachylite
1507:
1294:
1226:Tephriphonolite
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492:10.1.1.692.4446
467:
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442:
430:alkaline magmas
393:Comoros Islands
366:
359:
355:
351:
347:
343:
339:
331:
265:; minor alkali
214:by a normative
172:
164:Earth's surface
82:
78:
68:
30:
23:
17:
12:
11:
5:
1905:
1895:
1894:
1892:Volcanic rocks
1889:
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1863:External links
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1806:Rhomb porphyry
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1241:Trachyandesite
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1218:
1213:
1208:
1203:
1198:
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1191:
1181:
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1164:Quartz diorite
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883:Types of rocks
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848:
844:Schmincke 2003
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809:, p. 205.
807:Schmincke 2003
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733:gsa.confex.com
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477:(5): 825–833.
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397:Canary Islands
374:Livia Drusilla
365:
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332:) and high in
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328:(42 to 45% SiO
281:are common as
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1779:
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1769:
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1766:Litchfieldite
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1731:Hyaloclastite
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1139:Phonotephrite
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1044:Hyaloclastite
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793:9783540436508
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739:on 2007-05-13
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714:9780521880060
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536:: 1–52. 1999.
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415:magma chamber
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336:(3 to 5.5% Na
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271:Clinopyroxene
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55:
54:Volcanic bomb
50:
45:
42:
41:
36:
28:
22:
1776:Luxullianite
1756:Lapis lazuli
1701:Blue Granite
1628:Serpentinite
1603:Metapsammite
1353:Conglomerate
1275:Trondhjemite
1253:Trachybasalt
1194:Pantellerite
1094:Monzogranite
1039:Hornblendite
1024:Granodiorite
944:
890:Igneous rock
839:
820:
814:
802:
783:
777:
758:
752:
741:. Retrieved
737:the original
732:
723:
704:
698:
686:. Retrieved
681:
672:
653:
647:
602:
598:
588:
552:
533:
529:
517:
474:
470:
464:
427:
405:
378:
319:
224:
189:
122:, volcanic (
74:
73:
40:Igneous rock
38:
1887:Mafic rocks
1665:Whiteschist
1556:Greenschist
1536:Cataclasite
1526:Amphibolite
1453:Phosphorite
1403:Itacolumite
1328:Calcarenite
1174:Quartzolite
1109:Nephelinite
1079:Lamprophyre
1034:Harzburgite
992:Napoleonite
965:Charnockite
960:Carbonatite
950:Blairmorite
913:Anorthosite
630:10553/72171
421:mixed with
408:Laacher See
364:Occurrences
285:and in the
283:phenocrysts
243:plagioclase
212:nephelinite
170:Description
152:plagioclase
136:porphyritic
1871:Categories
1831:Teschenite
1816:Shonkinite
1791:Pietersite
1786:Novaculite
1696:Borolanite
1681:Adamellite
1598:Metapelite
1566:Calcflinta
1531:Blueschist
1521:Anthracite
1503:Wackestone
1483:Travertine
1428:Lumachelle
1408:Jaspillite
1363:Diamictite
1285:Websterite
1270:Troctolite
1246:Benmoreite
1206:Shonkinite
1179:Rhyodacite
1159:Pyroxenite
1129:Peridotite
1089:Lherzolite
1064:Kimberlite
1054:Ignimbrite
1049:Icelandite
1029:Granophyre
938:Shoshonite
830:0824808320
768:3540127569
743:2006-04-05
663:0716724383
456:References
446:Limburgite
263:ulvospinel
1846:Variolite
1836:Theralite
1826:Tachylite
1811:Rodingite
1781:Mangerite
1761:Larvikite
1746:Jasperoid
1741:Jadeitite
1706:Epidosite
1660:Tectonite
1653:Soapstone
1618:Quartzite
1588:Migmatite
1573:Itabirite
1551:Granulite
1493:Turbidite
1473:Sylvinite
1468:Siltstone
1458:Sandstone
1443:Oil shale
1423:Limestone
1398:Gritstone
1393:Greywacke
1388:Geyserite
1378:Evaporite
1368:Diatomite
1343:Claystone
1308:Argillite
1221:Tachylyte
1189:Comendite
1134:Phonolite
1124:Pegmatite
1099:Monzonite
1074:Lamproite
1069:Komatiite
1009:Foidolite
970:Enderbite
933:Mugearite
784:Volcanism
639:1525-2027
580:951031503
487:CiteSeerX
423:phonolite
315:pigeonite
295:aluminium
259:magnetite
235:nepheline
220:nepheline
200:normative
144:pyroxenes
132:aphanitic
124:extrusive
60:of green
27:Bassanite
1821:Taconite
1796:Pyrolite
1721:Ganister
1691:Aphanite
1686:Appinite
1608:Phyllite
1593:Mylonite
1561:Hornfels
1541:Eclogite
1438:Mudstone
1413:Laterite
1373:Dolomite
1290:Wehrlite
1265:Trachyte
1258:Hawaiite
1236:Tonalite
1231:Tephrite
1184:Rhyolite
1149:Porphyry
1119:Obsidian
1004:Essexite
955:Boninite
945:Basanite
903:Andesite
688:26 March
509:28548230
440:See also
395:and the
352:O plus K
291:titanium
267:feldspar
255:ilmenite
196:tephrite
118:) is an
75:Basanite
58:xenolith
33:Basanite
1841:Unakite
1771:Llanite
1736:Ijolite
1711:Felsite
1643:Suevite
1478:Tillite
1418:Lignite
1358:Coquina
1323:Breccia
1216:Syenite
1144:Picrite
1059:Ijolite
1019:Granite
987:Diorite
982:Diabase
898:Adakite
678:"Livia"
607:Bibcode
479:Bibcode
419:lapilli
411:caldera
401:rifting
385:hotspot
340:O and K
334:alkalis
279:olivine
251:olivine
239:leucite
227:mineral
148:olivine
120:igneous
66:Réunion
1751:Kenyte
1726:Gossan
1623:Schist
1583:Marble
1546:Gneiss
1448:Oolite
1313:Arkose
1211:Sovite
1201:Scoria
1154:Pumice
1114:Norite
1084:Latite
1014:Gabbro
999:Dunite
977:Dacite
923:Basalt
918:Aplite
827:
790:
765:
711:
660:
637:
578:
568:
507:
489:
434:shield
391:, the
326:silica
307:Quartz
299:sodium
287:matrix
277:) and
275:augite
247:augite
245:, and
216:albite
156:silica
62:dunite
21:Jasper
1716:Flint
1638:Slate
1633:Skarn
1498:Varve
1463:Shale
1383:Flint
1338:Chert
1333:Chalk
526:(PDF)
505:S2CID
322:mafic
130:with
64:from
1488:Tufa
1433:Marl
1348:Coal
1280:Tuff
825:ISBN
788:ISBN
763:ISBN
709:ISBN
690:2021
658:ISBN
635:ISSN
576:OCLC
566:ISBN
313:and
297:and
257:and
225:The
204:IUGS
192:QAPF
128:rock
1851:Wad
625:hdl
615:doi
558:doi
497:doi
475:148
241:),
237:or
134:to
1873::
731:.
680:.
633:.
623:.
613:.
603:16
601:.
597:.
574:.
564:.
542:^
532:.
528:.
503:.
495:.
485:.
473:.
403:.
360:.
317:.
305:.
293:,
166:.
146:,
142:,
126:)
108:aɪ
876:e
869:t
862:v
833:.
796:.
771:.
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717:.
692:.
666:.
641:.
627::
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609::
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560::
534:1
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499::
481::
358:2
354:2
350:2
346:2
342:2
338:2
330:2
273:(
261:-
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111:t
105:n
102:ˌ
99:ə
96:.
93:s
90:æ
87:b
84:ˈ
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