Reconciliation of the Devils Hole climate record with orbital forcing
نویسندگان
چکیده
منابع مشابه
The California Current, Devils Hole, and Pleistocene climate.
Herbert et al. (1) are to be commended for their convincing and important correlation of midto late-Pleistocene California Current sea surface temperatures (SSTs), California coastal vegetation, and the paleotemperature record in vein calcite at Devils Hole, Nevada. Their intriguing notion linking California Current SSTs and the Laurentide ice sheet, however, is open to question, as is their as...
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Recent AU :2 high-resolution Oligocene–Miocene oxygen isotopic records revealed a relatively transient, ca. 2myr period, 1m amplitude cyclicity in isotopic values (Oi and Mi events, respectively). Intriguingly, it has been suggested that these isotopic excursions in oceanic dO were linked to ephemeral growth and decay in Antarctic ice sheets. A great deal of effort in the palaeoceanography comm...
متن کاملDating of the devils hole calcite vein.
et al. (2) present a long, continuous, highresolution climate record extracted from a calcite vein in Devils Hole, Nevada. If their dating is accurate, the record appears to contradict the Milankovitch hypothesis (3). Dating of subsamples of the vein was done with the use of well-established principles of 230Th dating (4) and with recently developed techniques for precise measurement of 230Th a...
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Fluctuating climate is a hallmark of Earth. As one transcends deep into Earth time, however, both the evidence for and the causes of climate change become difficult to establish. We report geochemical and sedimentological evidence for repeated, short-term climate fluctuations from the exceptionally well-preserved ∼1.4-billion-year-old Xiamaling Formation of the North China Craton. We observe tw...
متن کاملOrbital-scale climate forcing of grassland burning in southern Africa.
Although grassland and savanna occupy only a quarter of the world's vegetation, burning in these ecosystems accounts for roughly half the global carbon emissions from fire. However, the processes that govern changes in grassland burning are poorly understood, particularly on time scales beyond satellite records. We analyzed microcharcoal, sediments, and geochemistry in a high-resolution marine ...
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ژورنال
عنوان ژورنال: Science
سال: 2016
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aad4132