Zobrazeno 1 - 10
of 20
pro vyhledávání: '"James E. T. Channell"'
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 14, Iss 10, Pp 4623-4646 (2013)
Paleomagnetic analysis and radiocarbon dating of an expanded Holocene deep‐sea sediment sequence recovered by Integrated Ocean Drilling Program (IODP) Expedition 303 from Labrador Sea Site U1305 (Lat.: 57°28.5 N, Long.: 48°31.8 W, water depth 345
Externí odkaz:
https://doaj.org/article/a8901b35d627451f85149b44b092ed6f
Lack of foraminiferal carbonate in marine sediments deposited at high latitudes results in traditional oxygen isotope stratigraphy not playing a central role in Quaternary age control for a large portion of the globe. This limitation has affected the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71da34d68e9f9e0a77c66f8ebbbc057e
https://eprints.soton.ac.uk/428612/
https://eprints.soton.ac.uk/428612/
Publikováno v:
Quaternary Science Reviews. 228:106114
We review the ages of Quaternary magnetic polarity reversals and magnetic excursions. Improvements in radioisotopic 40Ar/39Ar dating of reversals and excursions reflect the use of multi-collector mass spectrometers, along with ultra-low backgrounds,
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 191:65-109
Correlations of Upper Triassic magnetic stratigraphies from Tethyan sections have been hampered by difficulties with conodont biostratigraphy and taxonomy, and discontinuous sedimentation, particularly in the 'Hallstatt Limestones' of Turkey and Aust
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 182:183-196
We have carried out a multiphase analysis of samples from ODP Site 177-1092, Meteor Rise, subantarctic South Atlantic. Samples were analyzed for ice-rafted debris (IRD) and stable isotopes from benthic foraminifera. Both analyses were performed on th
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 182:165-181
We present mid-Pliocene (4.3–2.6 Ma) benthic stable oxygen and carbon isotope data from Ocean Drilling Program Site 1092 (ODP Leg 177) drilled in the sub-Antarctic sector of the Southern Ocean. The results are compared with the stable isotope resul
Publikováno v:
Earth and Planetary Science Letters. 159:165-181
A chronostratigraphic framework for the last 200 ka, based on relative variations of geomagnetic paleointensity, has been derived for the Labrador Sea where δ18O stratigraphies are compromised by lack of benthic foraminifera and environmental pertur
Early Cretaceous polarity chrons CM0 to CM11 recorded in northern Italian land sections near Brescia
Autor:
E. Erba, James E T Channell
Publikováno v:
Earth and Planetary Science Letters. 108:161-179
Three Lower Cretaceous pelagic limestone sections located in the Lombardian Prealps, northwest of Brescia, record polarity chrons CM0 to CM11. The polarity chrons are correlated to nannofossil and foraminiferal events. The Polaveno section records po
Publikováno v:
Journal of Geophysical Research: Solid Earth. 108
[1] We report geomagnetic directional paleosecular variation, relative paleointensity proxies and oxygen isotope data from the upper 88 m composite depth (mcd) at South Atlantic Ocean Drilling Program (ODP) Site 1089 (40°56.2′S, 9°53.64′E, 4620