Download e-book for iPad: Arctic Ocean Sediments: Processes, Proxies, and by Ruediger Stein (Eds.)

By Ruediger Stein (Eds.)

ISBN-10: 0080558852

ISBN-13: 9780080558851

ISBN-10: 044452018X

ISBN-13: 9780444520180

Even though it is mostly permitted that the Arctic Ocean is a really delicate and significant quarter for adjustments within the worldwide weather, this quarter is the final significant physiographic province of the earth whose short-and long term geological background is far much less identified compared to different ocean areas. This lack of awareness is principally as a result of the key technological/logistic difficulties in attaining this harsh, ice-covered zone with common examine vessels and in retrieving lengthy and undisturbed sediment cores. throughout the the final approximately two decades, even though, numerous foreign and multidisciplinary send expeditions, together with the 1st clinical drilling on Lomonosov Ridge in 2004, a break-through in Arctic study, have been conducted into the important Artic and its surrounding shelf seas. effects from those expeditions have enormously complex our wisdom on Arctic Ocean paleoenvironments. released syntheses in regards to the wisdom on Arctic Ocean geology, nonetheless, are in response to info on hand ahead of 1990. A finished compilation of knowledge on Arctic Ocean paleoenvironment and its short-and long term variability in response to the massive volume of latest facts together with the ACEX drilling info, has now not been to be had but. With this ebook, providing (1) specific details on glacio-marine sedimentary methods and geological proxies used for paleoenvironmental reconstructions, and (2) precise geological information on glossy environments, Quaternary variability on diversified time scales in addition to the long term weather historical past in the course of Mesozoic-Tertiary instances, this hole in wisdom might be stuffed. *Aimed at experts and graduates *Presents history learn, contemporary advancements, and destiny trends*Written through a number one student and specialist

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The circulation of the surface waters is quite well understood from studies of sea-ice drift. Today, two major current systems dominate the surface-water circulation in the Arctic Ocean: the anticyclonic Beaufort Gyre occupying most of 46 Arctic Ocean Sediments: Processes, Proxies and Palaeoenvironment West Alaska C. Navarin C. Olyutorskiy C. Yukon C. Anadyr C. Alaskan Coastal C. Lena C. Beaufort Gyre New Siberian C. East Talmyr C. West Talmyr C. Transpolar Drift Ob Yenisel C. Saint Anna C. Persey C.

9). The former is transporting sea ice (and entrained sediments) 48 Arctic Ocean Sediments: Processes, Proxies and Palaeoenvironment from the Canadian Arctic into the central Arctic, the latter shows a direct transport of sea ice (and entrained sediments) across the central Arctic towards Fram Strait. 9). 6). In terms of transport rates, the exchange with the North Atlantic is most important. 5 Sv of waters enters the Arctic through Fram Strait (even 3– 5 Sv according to Woodgate, Schauer, & Fahrbach, 1998), and B2 Sv flow into the Arctic via Barents Sea.

2000b). The grey-shaded areas indicate water depths shallower than 2,000 m. , 1999); the dashed-dot-dashed line shows the drift paths of the T3-ice island across Alpha Ridge; CT, drift pattern of the CESAR experiment; H1^3 soundings performed by Hunkins (1961); NP, North Pole; LR, Lomonosov Ridge (from Jokat, 2003). (B) Pro¢le 98540 running perpendicular to Alpha Ridge. The basement is rougher close to the escarpment near shot point 1200. Weak re£ections indicate that older sediments might outcrop at the escarpment.

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Arctic Ocean Sediments: Processes, Proxies, and Paleoenvironment by Ruediger Stein (Eds.)

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