Matches in SemOpenAlex for { <https://semopenalex.org/work/W757963350> ?p ?o ?g. }
Showing items 1 to 85 of
85
with 100 items per page.
- W757963350 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.
- W757963350 created "2016-06-24" @default.
- W757963350 creator A5000983151 @default.
- W757963350 creator A5034607374 @default.
- W757963350 creator A5052107461 @default.
- W757963350 creator A5056341039 @default.
- W757963350 creator A5059331743 @default.
- W757963350 creator A5086538799 @default.
- W757963350 creator A5091533609 @default.
- W757963350 date "2014-01-01" @default.
- W757963350 modified "2023-09-26" @default.
- W757963350 title "Lateral growth of Late Pleistocene stromatolites from Walker Lake (Nevada) and proxy constrains on environmental change" @default.
- W757963350 hasPublicationYear "2014" @default.
- W757963350 type Work @default.
- W757963350 sameAs 757963350 @default.
- W757963350 citedByCount "0" @default.
- W757963350 crossrefType "journal-article" @default.
- W757963350 hasAuthorship W757963350A5000983151 @default.
- W757963350 hasAuthorship W757963350A5034607374 @default.
- W757963350 hasAuthorship W757963350A5052107461 @default.
- W757963350 hasAuthorship W757963350A5056341039 @default.
- W757963350 hasAuthorship W757963350A5059331743 @default.
- W757963350 hasAuthorship W757963350A5086538799 @default.
- W757963350 hasAuthorship W757963350A5091533609 @default.
- W757963350 hasConcept C109007969 @default.
- W757963350 hasConcept C115393850 @default.
- W757963350 hasConcept C127313418 @default.
- W757963350 hasConcept C146588470 @default.
- W757963350 hasConcept C146596784 @default.
- W757963350 hasConcept C151730666 @default.
- W757963350 hasConcept C17409809 @default.
- W757963350 hasConcept C191897082 @default.
- W757963350 hasConcept C192562407 @default.
- W757963350 hasConcept C2779866092 @default.
- W757963350 hasConcept C2780181037 @default.
- W757963350 hasConcept C2780191791 @default.
- W757963350 hasConcept C2780659211 @default.
- W757963350 hasConcept C2780897241 @default.
- W757963350 hasConcept C2781119444 @default.
- W757963350 hasConcept C2816523 @default.
- W757963350 hasConcept C53570757 @default.
- W757963350 hasConceptScore W757963350C109007969 @default.
- W757963350 hasConceptScore W757963350C115393850 @default.
- W757963350 hasConceptScore W757963350C127313418 @default.
- W757963350 hasConceptScore W757963350C146588470 @default.
- W757963350 hasConceptScore W757963350C146596784 @default.
- W757963350 hasConceptScore W757963350C151730666 @default.
- W757963350 hasConceptScore W757963350C17409809 @default.
- W757963350 hasConceptScore W757963350C191897082 @default.
- W757963350 hasConceptScore W757963350C192562407 @default.
- W757963350 hasConceptScore W757963350C2779866092 @default.
- W757963350 hasConceptScore W757963350C2780181037 @default.
- W757963350 hasConceptScore W757963350C2780191791 @default.
- W757963350 hasConceptScore W757963350C2780659211 @default.
- W757963350 hasConceptScore W757963350C2780897241 @default.
- W757963350 hasConceptScore W757963350C2781119444 @default.
- W757963350 hasConceptScore W757963350C2816523 @default.
- W757963350 hasConceptScore W757963350C53570757 @default.
- W757963350 hasLocation W7579633501 @default.
- W757963350 hasOpenAccess W757963350 @default.
- W757963350 hasPrimaryLocation W7579633501 @default.
- W757963350 hasRelatedWork W1750580008 @default.
- W757963350 hasRelatedWork W1935511639 @default.
- W757963350 hasRelatedWork W1944011807 @default.
- W757963350 hasRelatedWork W1973004184 @default.
- W757963350 hasRelatedWork W1986990178 @default.
- W757963350 hasRelatedWork W2002287697 @default.
- W757963350 hasRelatedWork W2014464855 @default.
- W757963350 hasRelatedWork W2032019838 @default.
- W757963350 hasRelatedWork W2042186776 @default.
- W757963350 hasRelatedWork W2051763044 @default.
- W757963350 hasRelatedWork W2055842435 @default.
- W757963350 hasRelatedWork W2087827321 @default.
- W757963350 hasRelatedWork W2112769390 @default.
- W757963350 hasRelatedWork W2118861087 @default.
- W757963350 hasRelatedWork W2151109947 @default.
- W757963350 hasRelatedWork W2151416007 @default.
- W757963350 hasRelatedWork W2157657568 @default.
- W757963350 hasRelatedWork W2377363376 @default.
- W757963350 hasRelatedWork W2542806878 @default.
- W757963350 hasRelatedWork W289078742 @default.
- W757963350 isParatext "false" @default.
- W757963350 isRetracted "false" @default.
- W757963350 magId "757963350" @default.
- W757963350 workType "article" @default.