Results 151 to 160 of about 5,424,467 (257)

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

Geophysical 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, Yi Wang, Kassandra M. Costa, Ingrid L. Hendy, Sune G. Nielsen   +4 more
wiley   +1 more source

Radiocarbon reservoir correlation ages in the Peter the Great Gulf, Sea of Japan, and eastern coast of the Kunashir, southern Kuriles (northwestern Pacific).

, 2001
The radiocarbon reservoir age correction values (R) for the Russian Far East are estimated as 370+ or -26 yr for the northwestern Sea of Japan, and 711+ or -46 yr for the southern Kurile ...
Burr, George S, Jull, A J Timothy, Kuzmin, Yaroslav V   +2 more
core  

Radiocarbon Age Offsets Between Two Surface Dwelling Planktonic Foraminifera Species During Abrupt Climate Events in the SW Iberian Margin. [PDF]

Paleoceanogr Paleoclimatol, 2019
Ausín B, Haghipour N, Wacker L, Voelker AHL, Hodell D, Magill C, Looser N, Bernasconi SM, Eglinton TI.   +8 more
europepmc   +1 more source

A Delta R correction value for Samoa from known-age marine shells.

, 1999
A first-order Delta R correction value for marine samples is presented based on 3 radiocarbon determinations of known-age marine shells from ...
Phelan, Matthew B
core  

Air-Mass Influence, Radiation, and Melt-Season Dynamics Jointly Shape Dissolved Organic Matter Composition and Radiocarbon Age in Glacier Outflows on the Tibetan Plateau. [PDF]

Environ Sci Technol
Huang C, Wang M, Zhang X, Koch FT, Gerbig C, Jiang H, Xu B, Gleixner G.   +7 more
europepmc   +1 more source

Radiocarbon calibration and age estimation

, 2019
Radiocarbon dating can be applied to archaeological materials which contain radiocarbon from the atmosphere or the oceans. In order to interpret radiocarbon measurements as dates, it is necessary to compare them against measurements on known‐age samples which have been dated by other methods. This allows calibration onto a timescale derived from either
openaire   +1 more source

Radiocarbon Dates and Stable Isotope Data from the Early Bronze Age Burials in Riigiküla I and Kivisaare Settlement Sites, Estonia

, 2015
Four inhumations from Kivisaare and Riigiküla I settlement and burial sites were dated in the course of a project about hunter-gatherer mortuary practices in Estonia, as they were believed to belong to the Stone Age.
Meadows, John, Tõrv, Mari
core   +4 more sources

Puzzling parrotfishes: Radiocarbon age validation and updated longevity estimates for western Atlantic species in support of sustainable fisheries management. [PDF]

PLoS One
Rivera Hernandez JM, Shervette VR.
europepmc   +1 more source

University of Pennsylvania radiocarbon dates, [Part] 4.

, 1961
With one exception, radiocarbon dates in this list were reported previously by Rainey and Ralph (Am. Antiquity, v. 24, no. 4, p. 365-374, 1959). The radiocarbon determinations were made over a period of several years.
Ralph, Elizabeth K, Ackerman, Robert E
core  

Radiocarbon age anomalies in land snail shells from Texas; ontogenetic, individual, and geographic patterns of variation.

, 1999
Accelerator mass spectrometric (AMS) radiocarbon analyses of live-collected, prebomb samples of shell carbonates of the land snails Rabdotus dealbatus and R.
Ellis, G Lain, Toolin, L J, Goodfriend, Glenn A   +2 more
core