Patterns of biomediated CaCO3 crystal bushes in hot spring deposits
Peng, Xiaotong1,2; Jones, Brian
2013-08-15
发表期刊SEDIMENTARY GEOLOGY
卷号294页码:105-117
摘要In 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.
文章类型Article
关键词Hot Springs Biofilms Calcite Aragonite Mesocrystals
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.sedgeo.2013.05.009
收录类别SCI
语种英语
关键词[WOS]AMORPHOUS CALCIUM-CARBONATE ; CRYOSCANNING ELECTRON-MICROSCOPY ; YELLOWSTONE-NATIONAL-PARK ; KENYA RIFT-VALLEY ; LAKE BOGORIA ; NEW-ZEALAND ; EXPERIMENTAL SILICIFICATION ; GEOTHERMAL AREA ; POROUS-MEDIUM ; NORTH-ISLAND
WOS类目Geology
WOS记录号WOS:000324450700008
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/741
专题深海科学研究部_深海地质与地球化学研究室
作者单位1.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
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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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