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Patterns of biomediated CaCO3 crystal bushes in hot spring deposits
Peng, Xiaotong1,2; Jones, Brian
2013-08-15
Source PublicationSEDIMENTARY GEOLOGY
Volume294Pages:105-117
AbstractIn the Eiyuan hot spring, located in south China, the vent pool is covered with "crystal bushes", up to 2 cm high, 1 cm in diameter, that grew in the biofilms that thrive in the spring waters that have a pH of 7.5 and a temperature of 88 degrees C. The biofilms are formed largely of phototrophic purple bacteria and green bacteria. Growth of the crystal bushes, which are formed of aragonite crystals (wheat-sheaves, radiating clusters), rhombohedral and dodecahedral calcite crystals, amorphous CaCO3 (ACC), and opal-A, is attributed to precipitation in the micro-domains of the biofilms where physiochemical conditions can vary on the sub-micron scale. There is no evidence that the calcite was formed through recrystallization of the metastable aragonite and most of the calcite crystals developed as mesocrystals that are characterized by incomplete growth and porous crystal faces.
SubtypeArticle
KeywordHot Springs Biofilms Calcite Aragonite Mesocrystals
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.sedgeo.2013.05.009
Indexed BySCI
Language英语
WOS KeywordAMORPHOUS CALCIUM-CARBONATE ; CRYOSCANNING ELECTRON-MICROSCOPY ; YELLOWSTONE-NATIONAL-PARK ; KENYA RIFT-VALLEY ; LAKE BOGORIA ; NEW-ZEALAND ; EXPERIMENTAL SILICIFICATION ; GEOTHERMAL AREA ; POROUS-MEDIUM ; NORTH-ISLAND
WOS SubjectGeology
WOS IDWOS:000324450700008
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/741
Collection深海科学研究部_深海地质与地球化学研究室
Affiliation1.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China
3.Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada
First Author AffilicationInstitute of Deep-sea Science and Engineering,CAS
Recommended Citation
GB/T 7714
Peng, Xiaotong,Jones, Brian. Patterns of biomediated CaCO3 crystal bushes in hot spring deposits[J]. SEDIMENTARY GEOLOGY,2013,294:105-117.
APA Peng, Xiaotong,&Jones, Brian.(2013).Patterns of biomediated CaCO3 crystal bushes in hot spring deposits.SEDIMENTARY GEOLOGY,294,105-117.
MLA Peng, Xiaotong,et al."Patterns of biomediated CaCO3 crystal bushes in hot spring deposits".SEDIMENTARY GEOLOGY 294(2013):105-117.
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