Results 151 to 160 of about 378,683 (273)

Changes in land‐snail communities and steppe environments in the lower Rhône valley during the Lateglacial–Holocene transition

open access: yesBoreas, EarlyView.
Land snail successions in the lower Rhône valley allow us to reconstruct the postglacial recolonization. From the Lateglacial period onwards, Mediterranean steppe communities appeared. The arrival of forest taxa was significantly delayed by aridity. The question of glacial refugia, both local and distant, primarily concerned Mediterranean species of ...
Frédéric Magnin
wiley   +1 more source

Best Practices in Open and Reproducible Antarctic Marine Sediment Core Research

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Marine sediment cores from Antarctica are archived by national programs for reuse and resampling by future researchers, creating a resourceful way to conduct Antarctic science. With reduced budgets to conduct Antarctic field work and to collect new sediment cores offshore of the icy continent, the accessibility of these archived cores and ...
L. E. Miller   +12 more
wiley   +1 more source

University of Miami Radiocarbon Dates XVII

open access: yes, 1980
The following radiocarbon dates are a partial list of samples measured for a variety of projects and materials since April 1979. Chemical and counting procedures remain the same as indicated in R, v 20, p 274-282.
Introne, D S   +3 more
core  

Radiocarbon dating [PDF]

open access: yesNature Reviews Methods Primers, 2021
openaire   +1 more source

New Results From the Pre‐Pottery Neolithic Site of Al Uyaynah, Tabuk, in Northwestern Saudi Arabia

open access: yesArabian Archaeology and Epigraphy, Volume 37, Issue 1, Page 182-206, November 2026.
ABSTRACT Al Uyaynah is a low sandstone mound on an alluvial plain, long known for its extensive surface remains of stone‐built circular and rectangular structures. Following test excavations in 2012, more detailed excavation was undertaken in 2016 within one of the largest rectangular stone structures.
Khalid Alasmari   +6 more
wiley   +1 more source

The Late Agricultural Development of Central Arabian Oases—Archaeobotanical and Archaeozoological Studies of the al‐Kharj Oasis

open access: yesArabian Archaeology and Epigraphy, Volume 37, Issue 1, Page 317-355, November 2026.
ABSTRACT While oasis settlements emerged during the Bronze Age in Eastern and Northern Arabia, the settlement process in Central Arabia was different. Excavations at al‐Yamāma—main ancient settlement of the al‐Kharj oasis (Riyadh Province, KSA)—suggest that the latter did not emerge before the second half of the first millennium BCE.
Elora Chambraud   +4 more
wiley   +1 more source

Millennial‐Scale Deoxygenation in the Southern California Oxygen Minimum Zone Over the Last Glacial Cycle

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Past variability of oxygen minimum zones (OMZs) provides key insights into future ocean deoxygenation. However, California margin OMZ records remain temporally limited, restricting evaluation of mechanisms across full glacial–interglacial cycles.
Fang Qian   +4 more
wiley   +1 more source

Comparison of U-series and radiocarbon dates of speleothems.

open access: yes, 2000
The paper presents a comparison of U-series and radiocarbon dates of speleothems collected in several caves in central and southern Europe and southeast Africa.
Pazdur, Anna   +2 more
core  

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