“…Naish et al 1998). Similar shallow-marine evidence for NH glacio-eustasy has been described from Japan (Cronin et al 1994;Kitamura et al 1994), Italy (Rio et al 1996) and California (Clifton et al 1988).…”
Section: Estimation Of the Amplitude Of Mid-pliocene Eustatic Sea-levsupporting
Ice-volume calibrations of the deep-ocean foraminiferal d18 O record imply orbitally influenced sea-level fluctuations of up to 30 m amplitude during the Mid-Pliocene, and up to 30 per cent loss of the present-day mass of the East Antarctic Ice Sheet (EAIS) assuming complete deglaciation of the West Antarctic Ice Sheet (WAIS) and Greenland. These sea-level oscillations have driven recurrent transgressions and regressions across the world's continental shelves. Wanganui Basin, New Zealand, contains the most complete shallow-marine Late Neogene stratigraphic record in the form of a continuous cyclostratigraphy representing every 41 and 100 ka sea-level cycle since ca 3.6 Ma. This paper presents a synthesis of faunally derived palaeobathymetric data for shallow-marine sedimentary cycles corresponding to marine isotope stages M2-100 (ca 3.4-2.4 Ma). Our approach estimates the eustatic sea-level contribution to the palaeobathymetry curve by placing constraints on total subsidence and decompacted sediment accumulation. The sea-level estimates are consistent with those from d18 O curves and numerical ice sheet models, and imply a significant sensitivity of the WAIS and the coastal margins of the EAIS to orbital oscillations in insolation during the Mid-Pliocene period of relative global warmth. Sea-level oscillations of 10-30 m were paced by obliquity.
“…Naish et al 1998). Similar shallow-marine evidence for NH glacio-eustasy has been described from Japan (Cronin et al 1994;Kitamura et al 1994), Italy (Rio et al 1996) and California (Clifton et al 1988).…”
Section: Estimation Of the Amplitude Of Mid-pliocene Eustatic Sea-levsupporting
Ice-volume calibrations of the deep-ocean foraminiferal d18 O record imply orbitally influenced sea-level fluctuations of up to 30 m amplitude during the Mid-Pliocene, and up to 30 per cent loss of the present-day mass of the East Antarctic Ice Sheet (EAIS) assuming complete deglaciation of the West Antarctic Ice Sheet (WAIS) and Greenland. These sea-level oscillations have driven recurrent transgressions and regressions across the world's continental shelves. Wanganui Basin, New Zealand, contains the most complete shallow-marine Late Neogene stratigraphic record in the form of a continuous cyclostratigraphy representing every 41 and 100 ka sea-level cycle since ca 3.6 Ma. This paper presents a synthesis of faunally derived palaeobathymetric data for shallow-marine sedimentary cycles corresponding to marine isotope stages M2-100 (ca 3.4-2.4 Ma). Our approach estimates the eustatic sea-level contribution to the palaeobathymetry curve by placing constraints on total subsidence and decompacted sediment accumulation. The sea-level estimates are consistent with those from d18 O curves and numerical ice sheet models, and imply a significant sensitivity of the WAIS and the coastal margins of the EAIS to orbital oscillations in insolation during the Mid-Pliocene period of relative global warmth. Sea-level oscillations of 10-30 m were paced by obliquity.
“…Moreover, Naish et al (1998) presented a composite cyclostratigraphy from Wanganui Basin that provided shallow-marine evidence for most of the 48 or so fluctuations in the Northern Hemisphere ice sheets inferred from δ 18 O records (e.g., Shackleton et al 1995). Similar shallow-marine evidence for Northern Hemisphere glacioeustasy has been described from Japan (Cronin et al 1994;Kitamura et al 1994), Italy (Rio et al 1996), and California (Clifton et al 1988).…”
Section: Controls On Deposition Of the Tangahoe Formation And Implicamentioning
“…Finally fastest regional subsidence rates were attained during the early Pleistocene, as documented by the deposition of a thick succession of monotonous, muddy slope deposits (Roda, 1964;Rio et al, 1996;Capraro et al, 2011). The younger part of the succession (middle Pleistocene) is characterized by a distinct shallowingupwards trend predating the definitive uplift of the basin, which probably occurred in the latest middle Pleistocene (Capraro et al, 2011;Zecchin et al, 2011).…”
Section: Geological and Tectonic Setting Of The Crotone Basinmentioning
confidence: 97%
“…In particular, the first sequence encompasses the Serravallian to early Messinian interval, the second developed from middle Messinian to early Pliocene, and the third from middle Pliocene to middle Pleistocene. Interpretation of the older part of the local stratigraphy (Miocene) is still ambiguous, as the component sediments are, in general, not amenable to standard bio-magnetostratigraphic analyses (Roda, 1964;Rio et al, 1996).…”
Section: Geological and Tectonic Setting Of The Crotone Basinmentioning
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