Oxygen isotope measurements of mammoth and reindeer skeletal remains: an archive of Late Pleistocene environmental conditions in Eurasian Arctic

1998 ◽  
Vol 160 (3-4) ◽  
pp. 587-592 ◽  
Author(s):  
L. Genoni ◽  
P. Iacumin ◽  
V. Nikolaev ◽  
Yu. Gribchenko ◽  
A. Longinelli
Keyword(s):  
Oxygen Isotope ◽  
Late Pleistocene ◽  
Environmental Conditions ◽  
Skeletal Remains ◽  
Isotope Measurements

Preliminary investigation of a late Wisconsinan fauna from K1 cave, Queen Charlotte Islands (Haida Gwaii), Canada

2004 ◽  
Vol 62 (1) ◽  
pp. 105-109 ◽  
Author(s):  
Carolyn L. Ramsey ◽  
Paul A. Griffiths ◽  
Daryl W. Fedje ◽  
Rebecca J. Wigen ◽  
Quentin Mackie
Keyword(s):  
Late Pleistocene ◽  
Environmental Conditions ◽  
Preliminary Investigation ◽  
Skeletal Remains ◽  
Human Migration ◽  
Early Holocene ◽  
Haida Gwaii ◽  
Queen Charlotte Islands ◽  
Late Wisconsinan ◽  
Early Human

Recent investigations of a limestone solution cave on the Queen Charlotte Islands (Haida Gwaii) have yielded skeletal remains of fauna including late Pleistocene and early Holocene bears, one specimen of which dates to ca. 14,400 14C yr B.P. This new fossil evidence sheds light on early postglacial environmental conditions in this archipelago, with implications for the timing of early human migration into the Americas.

The oxygen isotope stratigraphic record of the Late Pleistocene

1977 ◽  
Vol 280 (972) ◽  
pp. 169-182 ◽  
Keyword(s):  
Isotopic Composition ◽  
Oxygen Isotope ◽  
Late Pleistocene ◽  
World Ocean ◽  
Oxygen Isotopic Composition ◽  
Stratigraphic Correlation ◽  
Equatorial Atlantic ◽  
Deep Sea Sediment ◽  
Oxygen Isotopic ◽  
Isotope Measurements

Oxygen isotope measurements have been made in foraminifera from over 60 deep-sea sediment cores. Taken together with the oxygen isotope measurements published by Emiliani from Caribbean and Equatorial Atlantic cores, this comprises a unique body of stratigraphic data covering most of the important areas of calcareous sediment over the whole world ocean. The oxygen isotopic composition of foraminifera from cores of Late Pleistocene sediment varies in a similar manner in nearly all areas; the variations reflect changes in the oxygen isotopic composition of the ocean. The oceans are mixed in about 1 ka so that ocean isotopic changes, resulting from fluctuations in the quantity of ice stored on the continents, must have occurred almost synchronously in all regions. Thus the oxygen isotope record provides an excellent means of stratigraphic correlation. Cores accumulated at rates of over about 5 cm/ka provide records of oxygen isotopic composition change that are almost unaffected by post-depositional mixing of the sediment. Thus they preserve a detailed record of the advance and retreat of the ice masses in the northern hemisphere, and provide a unique source of information for the study of ice-sheet dynamics.

High-Resolution Oxygen Isotope Diagram of Late Pleistocene Ice Wedges of Seyakha Yedoma, Eastern Yamal Peninsula

2019 ◽  
Vol 487 (1) ◽  
pp. 823-826 ◽  
Author(s):  
Yu. K. Vasil’chuk ◽  
N. A. Budantseva ◽  
A. C. Vasil’chuk
Keyword(s):  
High Resolution ◽  
Oxygen Isotope ◽  
Late Pleistocene ◽  
Yamal Peninsula

Using stable hydrogen and oxygen isotope measurements of feathers to infer geographical origins of migrating European birds

Oecologia ◽  
2004 ◽  
Vol 141 (3) ◽  
pp. 477-488 ◽  
Author(s):  
Keith A. Hobson ◽  
Gabriel J. Bowen ◽  
Leonard I. Wassenaar ◽  
Yves Ferrand ◽  
Hervé Lormee
Keyword(s):  
Oxygen Isotope ◽  
Hydrogen And Oxygen Isotope ◽  
Isotope Measurements

scholarly journals Triple Oxygen Isotope Measurements by Multi-Collector Secondary Ion Mass Spectrometry

2021 ◽  
Vol 8 ◽  
Author(s):  
Nordine Bouden ◽  
Johan Villeneuve ◽  
Yves Marrocchi ◽  
Etienne Deloule ◽  
Evelyn Füri ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Oxygen Isotope ◽  
Spatial Resolution ◽  
Secondary Ion Mass Spectrometry ◽  
Small Radius ◽  
Large Radius ◽  
Ion Mass Spectrometry ◽  
Secondary Ion ◽  
Isotope Measurements

Secondary ion mass spectrometry (SIMS) is a powerful technique for in situ triple oxygen isotope measurements that has been used for more than 30 years. Since pioneering works performed on small-radius ion microprobes in the mid-80s, tremendous progress has been made in terms of analytical precision, spatial resolution and analysis duration. In this respect, the emergence in the mid-90s of the large-radius ion microprobe equipped with a multi-collector system (MC-SIMS) was a game changer. Further developments achieved on CAMECA MC-SIMS since then (e.g., stability of the electronics, enhanced transmission of secondary ions, automatic centering of the secondary ion beam, enhanced control of the magnetic field, 1012Ω resistor for the Faraday cup amplifiers) allow nowadays to routinely measure oxygen isotopic ratios (18O/16O and 17O/16O) in various matrices with a precision (internal error and reproducibility) better than 0.5‰ (2σ), a spatial resolution smaller than 10 µm and in a few minutes per analysis. This paper focuses on the application of the MC-SIMS technique to the in situ monitoring of mass-independent triple oxygen isotope variations.

scholarly journals A LATE PLEISTOCENE ENDEMIC GENET (CARNIVORA, VIVERRIDAE) FROM AGHIA NAPA, CYPRUS

2018 ◽  
Vol 40 (1) ◽  
pp. 201 ◽  
Author(s):  
G. E. Theodorou ◽  
S. I. Roussiakìs ◽  
A. Athanassiou ◽  
I. Giaourtsakis ◽  
I. Panayides
Keyword(s):  
Late Pleistocene ◽  
Skeletal Remains ◽  
Dental Morphology ◽  
Genetta Genetta ◽  
Rare Elements

The Pleistocene endemic fauna of Cyprus consists mainly of dwarf hippos and elephants, adapted to the insular environment. Among the rare elements of this endemic fauna is a small carnivore, the viverrid Genetta plesictoides, poorly known from scanty material that comes from two localities. Recent excavations in a rockshelter site at the area of Aghia Napa yielded —apart from a rich hippo sample—new skeletal remains (a partial skull and a tibia) of the cypriot genet. The dental morphology shows adaptations towards a more carnivorous diet in relation to the extant Genetta genetta.

High‐Precision, High‐Accuracy Oxygen Isotope Measurements of Zircon Reference Materials with the SHRIMP‐SI

2019 ◽  
Vol 44 (1) ◽  
pp. 85-102 ◽  
Author(s):  
Janaína N. Ávila ◽  
Trevor R. Ireland ◽  
Peter Holden ◽  
Peter Lanc ◽  
Andrew Latimore ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
High Precision ◽  
Reference Materials ◽  
High Accuracy ◽  
Isotope Measurements
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