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TEX86 is an organic paleothermometer based upon the membrane lipids of mesophilic marine Nitrososphaerota (formerly "Thaumarchaeota", "Marine Group 1
TEX86
Chemical compound
for hundreds of millions of years in the environment. It is part of the TEX86 paleothermometer, a temperature proxy for sea surface temperatures that
Crenarchaeol
Third and last period of the Mesozoic Era
Aptian tropical sea surface temperatures (SSTs) were 27–32 °C, based on TEX86 measurements from the equatorial Pacific. During the Aptian, Milankovitch
Cretaceous
in Earth history. Some structural forms of GDGT form the basis for the TEX86 paleothermometer. Isoprenoid GDGTs, now known to be synthesized by many
Glycerol dialkyl glycerol tetraether
Glycerol_dialkyl_glycerol_tetraether
American paleoclimatologist
has worked with geochemical proxies such as marine sediments, mud, and TEX86, to study past climate in East Africa. Her papers have been cited more than
Jessica_Tierney
Phylum of archaea
from marine sediments can be used to reconstruct past temperatures via the TEX86 paleotemperature proxy, as these lipids vary in structure according to temperature
Nitrososphaeria
Global warming about 55 million years ago
subtropical dinoflagellates (Apectodinium spp.}, and a marked increase in TEX86. The latter record is unusual, though, because it suggests a 6 °C (11 °F)
Paleocene–Eocene thermal maximum
Paleocene–Eocene_thermal_maximum
Period of climatic warming that reached its peak approximately 90 million years ago
2017). "Cretaceous sea-surface temperature evolution: Constraints from TEX86 and planktonic foraminiferal oxygen isotopes". Earth-Science Reviews. 172:
Cretaceous_Thermal_Maximum
Second epoch of the Paleogene Period
tropics that would require much higher average temperatures to sustain them. TEX86 BAYSPAR measurements indicate extremely high sea surface temperatures of
Eocene
Chemical compound
contribution to iGDGT pool by methanogens (first used in 2009) Formula: TEX86 = ([GDGT-2] + [GDGT-3] + [Cren']) / ([GDGT-1] + [GDGT-2] + [GDGT-3] + [Cren'])
Caldarchaeol
Meteorological hypothesis
excursion was detected. In 2007, chemical markers of surface temperature (TEX86) had also indicated that warming occurred around 3,000 years before the
Clathrate_gun_hypothesis
Anoxic extinction event in the Cretaceous period
2017). "Cretaceous sea-surface temperature evolution: Constraints from TEX86 and planktonic foraminiferal oxygen isotopes". Earth-Science Reviews. 172:
Cenomanian-Turonian boundary event
Cenomanian-Turonian_boundary_event
Methodology for the study of ancient temperatures
used to reconstruct paleotemperature. This relationship is known as the TEX86 temperature proxy, named for the 86 carbon atoms in the lipid molecules
Paleothermometer
Chemical compound
GDGTs in the Stratified Marine Water Column: Implications for GDGT-Based TEX86 Paleothermometry". Frontiers in Marine Science. 8. doi:10.3389/fmars.2021
Biphytane
Genus of archaea
"Influence of temperature, pH, and salinity on membrane lipid composition and TEX86 of marine planktonic thaumarchaeal isolates". Geochimica et Cosmochimica
Nitrosopumilus
American marine geologist
ocean temperature and climate evolution of the western Antarctic Peninsula. TEX86 proxy analysis of sediments from the western Antarctic Peninsula continental
Amelia_E._Shevenell
TEX86
TEX86
TEX86
TEX86
Boy/Male
Hebrew
God's help.
Girl/Female
Indian
Decent
Boy/Male
Muslim
Honey
Boy/Male
Scandinavian
Mountain dweller.
Boy/Male
Hindu, Indian
Attachment
Girl/Female
Gujarati, Hindu, Indian
Pleasant; Kind; Generous; Attractive
Male
English
Pet form of English Elbert, ELBIE means "bright nobility."
Boy/Male
Hindu, Indian
Saviour of Serpents or the Cobras
Boy/Male
Hindu, Indian, Marathi
A Wise Man
Girl/Female
Hindu
TEX86
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