Matches in SemOpenAlex for { <https://semopenalex.org/work/W1750580008> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W1750580008 abstract "Walker Lake, a terminal sodium bicarbonate lake in Western Nevada (Great Basin, USA) contains numerous carbonate structures, including stromatolites. The lake is a remnant of the larger Pleistocene Lake Lahontan system that has been isolated for the last ~12 ka. Stromatolites of unique macroscale morphology were collected at the ancient Lahontan shoreline during the 2014 International Geobiology Course.Initial observations of a stromatolite bed revealed a bowl-shaped carbonate framework composed of stacked, weakly laminated, vertical and horizontal petal-like structures with copious pore space. One laterally-oriented petal was taken off of the main structure and studied. Petrographical observations exhibit two types of alternating microfabrics and three transitions in microfabric. Both sparry crystal fans of calcite, and convex layers of fine micrite with occasional trapped crystals and fossils, were observed.Calibrated 14C ages (IntCal13) for the proximal and the distal end of the stromatolite are 35,540 YBP and 33,580 YBP, respectively. Clumped isotope (D47)-based estimates of temperature steadily increase throughout most of this interval, from the beginning of accretion, to the middle of the structure. By the distal end, values are at their peak, and at the tip temperatures decrease again. D47-temperatures correspond to microfabric, with textural changes associated with evidence for climatic fluctuations.We suggest the stromatolite formation may have been initiated during warmer intervals, induced by the chemical precipitation of calcite fans which served as a substrate for a biofilm growth. Microbial activity trapped the fine sediment and formed micrite. Colder conditions propagated fan precipitation. Microfabric alternation throughout the stromatolite records environmental change in the span of ca. 2000 years of Lake Lahontan history, likely in response to lake level fluctuations." @default.
- W1750580008 created "2016-06-24" @default.
- W1750580008 creator A5000983151 @default.
- W1750580008 creator A5034607374 @default.
- W1750580008 creator A5052107461 @default.
- W1750580008 creator A5059331743 @default.
- W1750580008 creator A5078822177 @default.
- W1750580008 creator A5086538799 @default.
- W1750580008 creator A5091533609 @default.
- W1750580008 date "2014-10-22" @default.
- W1750580008 modified "2023-09-26" @default.
- W1750580008 title "Lateral growth of Late Pleistocene stromatolites from Walker Lake (Nevada) and proxy constraints on environmental change" @default.
- W1750580008 hasPublicationYear "2014" @default.
- W1750580008 type Work @default.
- W1750580008 sameAs 1750580008 @default.
- W1750580008 citedByCount "0" @default.
- W1750580008 crossrefType "journal-article" @default.
- W1750580008 hasAuthorship W1750580008A5000983151 @default.
- W1750580008 hasAuthorship W1750580008A5034607374 @default.
- W1750580008 hasAuthorship W1750580008A5052107461 @default.
- W1750580008 hasAuthorship W1750580008A5059331743 @default.
- W1750580008 hasAuthorship W1750580008A5078822177 @default.
- W1750580008 hasAuthorship W1750580008A5086538799 @default.
- W1750580008 hasAuthorship W1750580008A5091533609 @default.
- W1750580008 hasConcept C109007969 @default.
- W1750580008 hasConcept C127313418 @default.
- W1750580008 hasConcept C146588470 @default.
- W1750580008 hasConcept C146596784 @default.
- W1750580008 hasConcept C151730666 @default.
- W1750580008 hasConcept C17409809 @default.
- W1750580008 hasConcept C191897082 @default.
- W1750580008 hasConcept C192562407 @default.
- W1750580008 hasConcept C2779866092 @default.
- W1750580008 hasConcept C2780181037 @default.
- W1750580008 hasConcept C2780191791 @default.
- W1750580008 hasConcept C2780659211 @default.
- W1750580008 hasConcept C2780897241 @default.
- W1750580008 hasConcept C2781119444 @default.
- W1750580008 hasConcept C53570757 @default.
- W1750580008 hasConceptScore W1750580008C109007969 @default.
- W1750580008 hasConceptScore W1750580008C127313418 @default.
- W1750580008 hasConceptScore W1750580008C146588470 @default.
- W1750580008 hasConceptScore W1750580008C146596784 @default.
- W1750580008 hasConceptScore W1750580008C151730666 @default.
- W1750580008 hasConceptScore W1750580008C17409809 @default.
- W1750580008 hasConceptScore W1750580008C191897082 @default.
- W1750580008 hasConceptScore W1750580008C192562407 @default.
- W1750580008 hasConceptScore W1750580008C2779866092 @default.
- W1750580008 hasConceptScore W1750580008C2780181037 @default.
- W1750580008 hasConceptScore W1750580008C2780191791 @default.
- W1750580008 hasConceptScore W1750580008C2780659211 @default.
- W1750580008 hasConceptScore W1750580008C2780897241 @default.
- W1750580008 hasConceptScore W1750580008C2781119444 @default.
- W1750580008 hasConceptScore W1750580008C53570757 @default.
- W1750580008 hasLocation W17505800081 @default.
- W1750580008 hasOpenAccess W1750580008 @default.
- W1750580008 hasPrimaryLocation W17505800081 @default.
- W1750580008 hasRelatedWork W1935511639 @default.
- W1750580008 hasRelatedWork W1944011807 @default.
- W1750580008 hasRelatedWork W1986990178 @default.
- W1750580008 hasRelatedWork W1995397224 @default.
- W1750580008 hasRelatedWork W2002287697 @default.
- W1750580008 hasRelatedWork W2006580400 @default.
- W1750580008 hasRelatedWork W2014464855 @default.
- W1750580008 hasRelatedWork W2032019838 @default.
- W1750580008 hasRelatedWork W2042186776 @default.
- W1750580008 hasRelatedWork W2051763044 @default.
- W1750580008 hasRelatedWork W2055842435 @default.
- W1750580008 hasRelatedWork W2083677629 @default.
- W1750580008 hasRelatedWork W2087827321 @default.
- W1750580008 hasRelatedWork W2112769390 @default.
- W1750580008 hasRelatedWork W2151109947 @default.
- W1750580008 hasRelatedWork W2157657568 @default.
- W1750580008 hasRelatedWork W2377363376 @default.
- W1750580008 hasRelatedWork W2507710532 @default.
- W1750580008 hasRelatedWork W2994473888 @default.
- W1750580008 hasRelatedWork W757963350 @default.
- W1750580008 isParatext "false" @default.
- W1750580008 isRetracted "false" @default.
- W1750580008 magId "1750580008" @default.
- W1750580008 workType "article" @default.