Pluvial periods in Southern Arabia over the last 1.1 million-years

Samuel L. Nicholson, Alistair W.G. Pike, Rob Hosfield, Nick Roberts, Diana Sahy, Jon Woodhead, Hai Cheng, R. Lawrence Edwards, Stéphane Affolter, Markus Leuenberger, Stephen J. Burns, Albert Matter, Dominik Fleitmann

Research output: Contribution to journalArticle

Abstract

Past climates and environments experienced by the Saharo-Arabian desert belt are of prime importance for palaeoclimatic and palaeoanthropological research. On orbital timescales transformations of the desert into a grassland landscape in response to higher precipitation provided “windows of opportunity” for hominin dispersal from Africa into Eurasia. On long timescales, palaeoenvironmental reconstructions for the region are predominantly derived from marine sediments and available terrestrial records from the Arabian Peninsula are limited to 450 ka before present (BP). Here, we present a new stalagmite-based palaeoclimate record from Mukalla Cave in Yemen which extends back to ∼1.1 million years BP or Marine Isotope Stage (MIS) 31, as determined by Uranium-lead dating. Stalagmite Y99 grew only during peak interglacial periods and warm substages back to ∼1.1 Ma. Stalagmite calcite oxygen isotope (δ18O) values show that every past interglacial humid period was wetter than the Holocene, a period in which large lakes formed in the now arid areas of southern Arabia. Carbon isotope (δ13C) values indicate habitable grassland environments developed during these pluvial periods. A total of 21 pluvial periods with precipitation of more than 300 mm yr−1 occurred since ∼1.1 Ma and thus numerous opportunities for hominin dispersals occurred throughout the Pleistocene. New determinations of hydrogen (δDFI) and oxygen (δ18OFI) isotopes in stalagmite fluid inclusion water demonstrates that enhanced precipitation in Southern Arabia was brought by the African and Indian Summer Monsoons. When combined with sub-annual calcite analysis of δ18O and δ13C, these data reveal a distinct wet (summer) and dry (winter) seasonality.

Original languageEnglish (US)
Article number106112
JournalQuaternary Science Reviews
Volume229
DOIs
StatePublished - Feb 1 2020

Fingerprint

stalagmite
desert
isotopes
Yemen
present
calcite
interglacial
uranium-lead dating
oxygen isotope
Values
deserts
reconstruction
grasslands
grassland
inclusion
climate
timescale
oxygen
water
uranium

Keywords

  • Arabia
  • Carbon-isotopes
  • Human dispersal
  • Middle east
  • Monsoon
  • Oxygen-isotopes
  • Pleistocene
  • Speleothems
  • Uranium-series dating
  • Water-isotopes

Cite this

Nicholson, S. L., Pike, A. W. G., Hosfield, R., Roberts, N., Sahy, D., Woodhead, J., ... Fleitmann, D. (2020). Pluvial periods in Southern Arabia over the last 1.1 million-years. Quaternary Science Reviews, 229, [106112]. https://doi.org/10.1016/j.quascirev.2019.106112

Pluvial periods in Southern Arabia over the last 1.1 million-years. / Nicholson, Samuel L.; Pike, Alistair W.G.; Hosfield, Rob; Roberts, Nick; Sahy, Diana; Woodhead, Jon; Cheng, Hai; Edwards, R. Lawrence; Affolter, Stéphane; Leuenberger, Markus; Burns, Stephen J.; Matter, Albert; Fleitmann, Dominik.

In: Quaternary Science Reviews, Vol. 229, 106112, 01.02.2020.

Research output: Contribution to journalArticle

Nicholson, SL, Pike, AWG, Hosfield, R, Roberts, N, Sahy, D, Woodhead, J, Cheng, H, Edwards, RL, Affolter, S, Leuenberger, M, Burns, SJ, Matter, A & Fleitmann, D 2020, 'Pluvial periods in Southern Arabia over the last 1.1 million-years', Quaternary Science Reviews, vol. 229, 106112. https://doi.org/10.1016/j.quascirev.2019.106112
Nicholson SL, Pike AWG, Hosfield R, Roberts N, Sahy D, Woodhead J et al. Pluvial periods in Southern Arabia over the last 1.1 million-years. Quaternary Science Reviews. 2020 Feb 1;229. 106112. https://doi.org/10.1016/j.quascirev.2019.106112
Nicholson, Samuel L. ; Pike, Alistair W.G. ; Hosfield, Rob ; Roberts, Nick ; Sahy, Diana ; Woodhead, Jon ; Cheng, Hai ; Edwards, R. Lawrence ; Affolter, Stéphane ; Leuenberger, Markus ; Burns, Stephen J. ; Matter, Albert ; Fleitmann, Dominik. / Pluvial periods in Southern Arabia over the last 1.1 million-years. In: Quaternary Science Reviews. 2020 ; Vol. 229.
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abstract = "Past climates and environments experienced by the Saharo-Arabian desert belt are of prime importance for palaeoclimatic and palaeoanthropological research. On orbital timescales transformations of the desert into a grassland landscape in response to higher precipitation provided “windows of opportunity” for hominin dispersal from Africa into Eurasia. On long timescales, palaeoenvironmental reconstructions for the region are predominantly derived from marine sediments and available terrestrial records from the Arabian Peninsula are limited to 450 ka before present (BP). Here, we present a new stalagmite-based palaeoclimate record from Mukalla Cave in Yemen which extends back to ∼1.1 million years BP or Marine Isotope Stage (MIS) 31, as determined by Uranium-lead dating. Stalagmite Y99 grew only during peak interglacial periods and warm substages back to ∼1.1 Ma. Stalagmite calcite oxygen isotope (δ18O) values show that every past interglacial humid period was wetter than the Holocene, a period in which large lakes formed in the now arid areas of southern Arabia. Carbon isotope (δ13C) values indicate habitable grassland environments developed during these pluvial periods. A total of 21 pluvial periods with precipitation of more than 300 mm yr−1 occurred since ∼1.1 Ma and thus numerous opportunities for hominin dispersals occurred throughout the Pleistocene. New determinations of hydrogen (δDFI) and oxygen (δ18OFI) isotopes in stalagmite fluid inclusion water demonstrates that enhanced precipitation in Southern Arabia was brought by the African and Indian Summer Monsoons. When combined with sub-annual calcite analysis of δ18O and δ13C, these data reveal a distinct wet (summer) and dry (winter) seasonality.",
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AU - Edwards, R. Lawrence

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