Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Simon C. Brassell"'
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55d9c5053ba3fe7312e52ae12ff36649
https://doi.org/10.2139/ssrn.4111921
https://doi.org/10.2139/ssrn.4111921
Autor:
Simon C. Brassell, Jackson K. Njau, Harald Stollhofen, Devon E. Colcord, Ian G. Stanistreet, Katherine H. Freeman, Andrea M. Shilling, Nicholas Toth, Kathy Schick
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 524:250-261
Several hypotheses invoke climatic variability as a driving force for hominin evolution. Thus, high-resolution records of climate and environmental variability from anthropologically significant locations can help test these hypotheses. Sedimentary s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e14c0754f028820934907e28a6f7dd94
https://doi.org/10.1016/j.palaeo.2019.04.001
https://doi.org/10.1016/j.palaeo.2019.04.001
Autor:
Simon C. Brassell, Devon E. Colcord, Andrea M. Shilling, Ian G. Stanistreet, Harald Stollhofen, Nicholas Toth, Kathy D. Schick, Jackson K. Njau, Katherine H. Freeman
Publikováno v:
Organic Geochemistry. 170:104437
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36eab3ca074387f3b14cae5ac03a4958
https://doi.org/10.1016/j.orggeochem.2022.104437
https://doi.org/10.1016/j.orggeochem.2022.104437
Autor:
Peter E. Sauer, Simon C. Brassell, Maria Mastalerz, Agnieszka Drobniak, Kelsey E. Doiron, Arndt Schimmelmann
Publikováno v:
30th International Meeting on Organic Geochemistry (IMOG 2021).
Summary The conventional paradigm for generation of economically viable petroleum reserves involves thermal cleavage of C-C bonds within sedimentary organic matter. However, there is evidence for alternative chemical pathways yielding non-microbial m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cb92feeb1f52e39f3bba81ecedf2e0f
https://doi.org/10.3997/2214-4609.202134230
https://doi.org/10.3997/2214-4609.202134230
Publikováno v:
30th International Meeting on Organic Geochemistry (IMOG 2021).
Summary In contemporary settings, suites of C30-C37 hydrocarbons with botryococcene-related structures, including monocyclic and bicyclic components, have been identified in East African maar lakes and in the Everglades. The sedimentary concentration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0042d6afbcd951a0b938d8dfd1f4dfea
https://doi.org/10.3997/2214-4609.202134232
https://doi.org/10.3997/2214-4609.202134232
Autor:
Agnieszka Drobniak, Kelsey Doiron, Arndt Schimmelmann, Simon C. Brassell, Peter E. Sauer, Maria Mastalerz
Publikováno v:
Geological Society of America Abstracts with Programs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db3fde37da656fe5225f361786afe5b7
https://doi.org/10.1130/abs/2021am-369946
https://doi.org/10.1130/abs/2021am-369946
Autor:
Peter E. Sauer, Harald Stollhofen, Katherine H. Freeman, Kathy Schick, Devon E. Colcord, Ian G. Stanistreet, Simon C. Brassell, Andrea M. Shilling, Nicholas Toth, Jackson K. Njau
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 495:284-291
Over the past century, numerous discoveries throughout East Africa have advanced our understanding of hominin evolution and provided substantive evidence that climatic and environmental variability played a critical role in evolutionary developments.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf08ee274f125f02e69edace2cbc8993
https://doi.org/10.1016/j.palaeo.2018.01.023
https://doi.org/10.1016/j.palaeo.2018.01.023
Publikováno v:
Organic Geochemistry. 113:303-314
The Santa Barbara Basin (SBB) preserves a high-resolution sediment record that is varved down to ca. 1700 CE and laminated for at least 2500 years. The distributions of 25 polycyclic aromatic hydrocarbons (PAHs) were investigated in a suite of sample
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fecbd063fdd7df7108eec93cbfb44f9
https://doi.org/10.1016/j.orggeochem.2017.07.022
https://doi.org/10.1016/j.orggeochem.2017.07.022
Publikováno v:
Organic Geochemistry. 110:25-32
Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are the basis of the MBT and CBT indices used as proxies for past changes in temperature and soil pH. Although these compounds were initially thought to originate solely from anaerobic soil bac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f81abb6977db44dca4588a65ec2ee73c
https://doi.org/10.1016/j.orggeochem.2017.04.008
https://doi.org/10.1016/j.orggeochem.2017.04.008
Publikováno v:
29th International Meeting on Organic Geochemistry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::393ba82b2d76a2cc25558006a9a385e0
https://doi.org/10.3997/2214-4609.201902691
https://doi.org/10.3997/2214-4609.201902691