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They are usually formed in warm, supersaturated, shallow, highly agitated marine water intertidal environments, though some are formed in inland lakes. The mechanism of formation starts with a small fragment of sediment acting as a 'seed', such as a piece of a shell. Strong intertidal currents wash
168:
Oolites are often used in the home aquarium industry because their small grain size (0.2 to 1.22 mm) is ideal for shallow static beds and bottom covering of up to 1" in depth. Also known as "oolitic" sand, the sugar-sized round grains of this sand pass easily through the gills of
173:
and other sand-sifting organisms. This unusually smooth sand promotes the growth of bacteria, which are important biofilters in home aquaria. Because of its extremely small grain size, oolitic sand has a lot of surface area, which promotes high bacterial growth.
342:
and alluvium from adjacent mountain slopes. The other sediments eroded away, while the more resistant oolite weathered into hummocks, small arches and other natural "sculptures". The
Shoofly Oolite lies on public land west of
351:(BLM). The physical and chemical properties of the Shoofly Oolite are the setting for a suite of rare plants, which the BLM protects through land use management and on-site interpretation.
334:
and depositing them on steeper benches near the shore in 2- to 40-foot thicknesses. When the lake drained (2 to 4 million years ago), the oolite was left behind, along with
588:
161:
the 'seeds' around on the seabed, where they accumulate layers of chemically precipitated calcite from the supersaturated water. The oolites are commonly found in large
165:
structures that resemble sand dunes. The size of the oolites reflect the time that they were exposed to the water before they were covered with later sediment.
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149:. Dolomitic and chert ooids are most likely the result of the replacement of the original texture in limestone. Oolitic hematite occurs at
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318:
One of the world's largest freshwater lakebed oolites is the
Shoofly Oolite, a section of the Glenns Ferry Formation on southwestern
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492:
665:
458: – Hard object produced within a living shelled mollusc – also formed from concentric layers of calcium carbonate
544:
228:
150:
101:, spherical grains composed of concentric layers. Strictly, oolites consist of ooids of diameter 0.25–2 millimetres;
17:
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330:. Wave action in the lake washed sediments back and forth in the shallows on the southwestern shore, forming
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Oolitic limestones … are among the most popular building stones and include
Portland stone and Bath stone
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Rogenstein is a term describing a specific type of oolite in which the cementing matter is
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Ooids on the surface of a limestone; Carmel
Formation (Middle Jurassic) of southern Utah
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campus in
Bloomington are built with native oolitic limestone material, and the
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539:. The Observer's Book of. London: Bloomsbury. pp. 161–162.
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contributed the materials for such U.S. landmarks as the
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Thin-section of calcitic ooids from an oolite within the
464: – Sand composed of an egg-like form of aragonite
402:, Indiana, is built mainly of grey oolitic limestone.
326:. 10 million years ago, the Plain formed the bed of
452: – System that relates geologic strata to time
105:composed of ooids larger than 2 mm are called
299:of southeastern Florida, the islands of the Lower
1654:
534:
535:Atkinson, Richard; Atkinson, Frances (1992) .
659:
195:The examples and perspective in this section
133:), but can be composed of phosphate, clays,
528:
666:
652:
213:, or create a new section, as appropriate.
229:Learn how and when to remove this message
113:can refer to oolite or individual ooids.
354:This type of limestone is also found in
56:
48:
36:
14:
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487:. Quarto Publishing Group UK. 2020.
181:
121:Ooids are most commonly composed of
24:
673:
484:A to Z of Rocks, Minerals and Gems
27:Sedimentary rock formed from ooids
25:
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390:. Many of the buildings on the
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157:, along with oolitic limestone.
45:, The Bahamas, with 0.5 mm scale
396:Soldiers' and Sailors' Monument
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281:their distinctive appearance.
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13:
1:
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273:, gives the buildings of the
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41:Modern ooids from a beach on
595:. 2015-05-28. Archived from
7:
443:
405:Oolites also appear in the
209:, discuss the issue on the
10:
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29:
1464:
1302:
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679:
349:Bureau of Land Management
288:lies under much of south
514:Kansas Geological Survey
415:Great Appalachian Valley
93: 'egg stone') is a
30:For the video game, see
719:Basaltic trachyandesite
699:Alkali feldspar granite
407:Conococheague limestone
462:Oolitic aragonite sand
253:period, and forms the
241:Some exemplar oolitic
70:
54:
46:
1109:Banded iron formation
376:Empire State Building
313:periods of glaciation
269:. A particular type,
60:
52:
40:
629:at Wikimedia Commons
537:Rocks & Minerals
207:improve this section
197:may not represent a
145:minerals, including
450:Geologic time scale
388:Arlington, Virginia
307:, are underlain by
275:World Heritage City
155:Birmingham, Alabama
32:Oolite (video game)
1465:Specific varieties
392:Indiana University
303:, and much of the
265:, and part of the
71:
69:) of southern Utah
55:
47:
1663:Sedimentary rocks
1650:
1649:
895:Nepheline syenite
625:Media related to
589:"Mud Flat Oolite"
564:"Miami Limestone"
494:978-0-7112-5684-2
324:Snake River Plain
239:
238:
231:
123:calcium carbonate
18:Oolitic limestone
16:(Redirected from
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1592:Rapakivi granite
1304:Metamorphic rock
1091:Sedimentary rock
960:Quartz monzonite
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638:Ooids and oolite
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364:Oolitic, Indiana
297:Miami Rock Ridge
286:Hunts Bay Oolite
267:North York Moors
261:with its famous
259:Isle of Portland
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95:sedimentary rock
63:Carmel Formation
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362:. The town of
345:Bruneau, Idaho
263:Portland Stone
255:Cotswold Hills
245:was formed in
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201:of the subject
199:worldwide view
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599:on 2016-03-06
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546:1-85471-044-3
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82:Ancient Greek
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19:
1567:Luxullianite
1547:Lapis lazuli
1492:Blue Granite
1419:Serpentinite
1394:Metapsammite
1238:
1144:Conglomerate
1066:Trondhjemite
1044:Trachybasalt
985:Pantellerite
885:Monzogranite
830:Hornblendite
815:Granodiorite
681:Igneous rock
640:at Wikibooks
601:. Retrieved
597:the original
592:
583:
571:. Retrieved
567:
558:
550:
536:
530:
518:. Retrieved
512:
503:
483:
477:
438:argillaceous
435:
419:Pennsylvania
413:age, in the
404:
400:Indianapolis
398:in downtown
384:the Pentagon
353:
317:
309:Miami Oolite
301:Florida Keys
294:
240:
225:
219:January 2023
216:
196:
167:
159:
151:Red Mountain
120:
110:
97:formed from
90:
85:
77:
73:
72:
43:Joulter Cays
1456:Whiteschist
1347:Greenschist
1327:Cataclasite
1317:Amphibolite
1244:Phosphorite
1194:Itacolumite
1119:Calcarenite
965:Quartzolite
900:Nephelinite
870:Lamprophyre
825:Harzburgite
783:Napoleonite
756:Charnockite
751:Carbonatite
741:Blairmorite
704:Anorthosite
593:www.blm.gov
372:Bloomington
338:, volcanic
249:during the
117:Composition
109:. The term
1657:Categories
1622:Teschenite
1607:Shonkinite
1582:Pietersite
1577:Novaculite
1487:Borolanite
1472:Adamellite
1389:Metapelite
1357:Calcflinta
1322:Blueschist
1312:Anthracite
1294:Wackestone
1274:Travertine
1219:Lumachelle
1199:Jaspillite
1154:Diamictite
1076:Websterite
1061:Troctolite
1037:Benmoreite
997:Shonkinite
970:Rhyodacite
950:Pyroxenite
920:Peridotite
880:Lherzolite
855:Kimberlite
845:Ignimbrite
840:Icelandite
820:Granophyre
729:Shoshonite
603:2016-03-04
520:October 8,
469:References
328:Lake Idaho
305:Everglades
271:Bath Stone
178:Occurrence
80:(from
1673:Petrology
1668:Limestone
1637:Variolite
1627:Theralite
1617:Tachylite
1602:Rodingite
1572:Mangerite
1552:Larvikite
1537:Jasperoid
1532:Jadeitite
1497:Epidosite
1451:Tectonite
1444:Soapstone
1409:Quartzite
1379:Migmatite
1364:Itabirite
1342:Granulite
1284:Turbidite
1264:Sylvinite
1259:Siltstone
1249:Sandstone
1234:Oil shale
1214:Limestone
1189:Gritstone
1184:Greywacke
1179:Geyserite
1169:Evaporite
1159:Diatomite
1134:Claystone
1099:Argillite
1012:Tachylyte
980:Comendite
925:Phonolite
915:Pegmatite
890:Monzonite
865:Lamproite
860:Komatiite
800:Foidolite
761:Enderbite
724:Mugearite
336:siltstone
243:limestone
211:talk page
131:aragonite
107:pisolites
1612:Taconite
1587:Pyrolite
1512:Ganister
1482:Aphanite
1477:Appinite
1399:Phyllite
1384:Mylonite
1352:Hornfels
1332:Eclogite
1229:Mudstone
1204:Laterite
1164:Dolomite
1081:Wehrlite
1056:Trachyte
1049:Hawaiite
1027:Tonalite
1022:Tephrite
975:Rhyolite
940:Porphyry
910:Obsidian
795:Essexite
746:Boninite
736:Basanite
694:Andesite
509:"Oolite"
444:See also
431:Virginia
423:Maryland
411:Cambrian
380:New York
251:Jurassic
205:You may
147:hematite
139:dolomite
67:Jurassic
65:(Middle
1632:Unakite
1562:Llanite
1527:Ijolite
1502:Felsite
1434:Suevite
1269:Tillite
1209:Lignite
1149:Coquina
1114:Breccia
1007:Syenite
935:Picrite
850:Ijolite
810:Granite
778:Diorite
773:Diabase
689:Adakite
368:Bedford
358:in the
356:Indiana
247:England
127:calcite
1542:Kenyte
1517:Gossan
1414:Schist
1374:Marble
1337:Gneiss
1239:Oolite
1104:Arkose
1002:Sovite
992:Scoria
945:Pumice
905:Norite
875:Latite
805:Gabbro
790:Dunite
768:Dacite
714:Basalt
709:Aplite
627:Oolite
573:May 7,
543:
491:
429:, and
370:, and
257:, the
171:gobies
111:oolith
91:(ōión)
78:oölite
74:Oolite
1507:Flint
1429:Slate
1424:Skarn
1289:Varve
1254:Shale
1174:Flint
1129:Chert
1124:Chalk
456:Pearl
409:, of
340:tuffs
332:ooids
320:Idaho
290:Wales
153:near
135:chert
103:rocks
99:ooids
84:
1279:Tufa
1224:Marl
1139:Coal
1071:Tuff
575:2019
568:USGS
541:ISBN
522:2021
489:ISBN
382:and
295:The
279:Bath
143:iron
1642:Wad
417:in
386:in
378:in
322:'s
277:of
141:or
129:or
88:ᾠόν
76:or
1659::
591:.
566:.
549:.
511:.
440:.
433:.
425:,
421:,
292:.
137:,
667:e
660:t
653:v
606:.
577:.
524:.
497:.
232:)
226:(
221:)
217:(
203:.
125:(
34:.
20:)
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