干旱区生态环境知识资源中心(Arid): Onshore groundwater spring carbonate mounds to lacustrine microbialites, the perplexing record of a transitional Great Salt Lake carbonate shoreline at Lakeside, Utah

Arid

DOI	10.1002/dep2.148
	Onshore groundwater spring carbonate mounds to lacustrine microbialites, the perplexing record of a transitional Great Salt Lake carbonate shoreline at Lakeside, Utah
	Homewood, Peter; Mettraux, Monique; Vanden Berg, Michael; Foubert, Anneleen; Neumann, Reiner; Newell, Dennis; Atwood, Genevieve
通讯作者	Homewood, P (corresponding author), GEOSOLUTIONS TRD, 99b Rue Ossau, F-64290 Gan, France.
来源期刊	DEPOSITIONAL RECORD
EISSN	2055-4877
出版年	2021-06
英文摘要	Non-marine carbonates at Lakeside (Utah) are the depositional record of transitional shoreline palaeoenvironments around 1,285 m, as lake elevation fell from Lake Bonneville levels to low-stand Great Salt Lake levels of 1,284-1,278 m. Lakeside carbonates provide a rare example of onshore groundwater spring deposits connected to lacustrine microbialite reefs. Clotted fabrics and mineralized bacteriomorphs suggest microbial influence both in groundwater spring and littoral carbonates. Thrombolitic clotted aragonite and dendritic clotted intermediate magnesium calcite may document two distinct microbial ecosystems each with a specific mineralogy. Radiocarbon dates from interior to outer layers of a 20 cm littoral microbialite suggest several thousand years of domal growth. Climate fluctuations may be recorded in littoral deposits by the alternation of ooids (increased salinity, arid conditions) with ostracods (fresher water, humid conditions). Successive higher frequency cycles of sedimentation, exposure, microkarst and early diagenesis were cemented by vadose and phreatic very high magnesium calcite and non-stoichiometric dolomite. Several layers of littoral and beach deposits accumulated during longer lacustrine transgressive-regressive cycles. Clastic detritus and lack of known initial U and Th concentrations could explain the lack of correlation between widely scattered U-Th ages and closely grouped C-14 dates. Calibrated ages from radiocarbon dating may have been increased by long residence time of groundwater in bedrock, since Sr-87/Sr-86 signatures do indicate possible littoral-zone mixing of lake water with groundwater from outcropping and subsurface Mississippian Great Blue Limestone. The perplexing Lakeside carbonate system is the result of interaction between microbial and chemical processes during sedimentation and early diagenesis.
英文关键词	groundwater springs lacustrine shoreline carbonates microbialites
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000657523800001
WOS关键词	YELLOWSTONE-NATIONAL-PARK ; MAMMOTH HOT-SPRINGS ; BONNEVILLE ; DOLOMITE ; PRECIPITATION ; DIAGENESIS ; MEDIATION ; ARAGONITE ; MIOCENE ; RATIOS
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367535
作者单位	[Homewood, Peter; Mettraux, Monique] GEOSOLUTIONS TRD, 99b Rue Ossau, F-64290 Gan, France; [Vanden Berg, Michael] Utah Geol Survey, Salt Lake City, UT USA; [Foubert, Anneleen] Univ Fribourg, Dept Geosci, Fribourg, Switzerland; [Neumann, Reiner] Ctr Mineral Technol CETEM, Rio De Janeiro, Brazil; [Neumann, Reiner] Univ Fed Rio de Janeiro, Postgrad Program Geosci, Natl Museum, Rio De Janeiro, Brazil; [Newell, Dennis] Utah State Univ, Dept Geosci, Logan, UT 84322 USA; [Atwood, Genevieve] EarthScienceEduc Org, Salt Lake City, UT USA
推荐引用方式 GB/T 7714	Homewood, Peter,Mettraux, Monique,Vanden Berg, Michael,et al. Onshore groundwater spring carbonate mounds to lacustrine microbialites, the perplexing record of a transitional Great Salt Lake carbonate shoreline at Lakeside, Utah[J],2021.
APA	Homewood, Peter.,Mettraux, Monique.,Vanden Berg, Michael.,Foubert, Anneleen.,Neumann, Reiner.,...&Atwood, Genevieve.(2021).Onshore groundwater spring carbonate mounds to lacustrine microbialites, the perplexing record of a transitional Great Salt Lake carbonate shoreline at Lakeside, Utah.DEPOSITIONAL RECORD.
MLA	Homewood, Peter,et al."Onshore groundwater spring carbonate mounds to lacustrine microbialites, the perplexing record of a transitional Great Salt Lake carbonate shoreline at Lakeside, Utah".DEPOSITIONAL RECORD (2021).