Planktic foraminiferal events in early Miocene Zones N.6 and N.7 at southwest Pacific DSDP Site 593: relation with climatic changes in oxygen isotope Zone Milb

Scott, G. H.; Nelson, Campbell S.; Stone, Harold H.

doi:10.1016/0377-8398(94)00025-i

Cited by 5 publications

(8 citation statements)

References 17 publications

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“…This horizon is at the first appearance datum (FAD) of Globorotalia zealandica. At DSDP Site 593, the prominent enrichment spike (-0.06‰) in the δ 18 O signature for Globigerina woodi (Scott et al 1995) close to the FAD of Globorotalia zealandica may identify the same episode. Scott et al (1995) identified a lower enrichment spike at DSDP Site 593 (420.18 m, -0.05‰) as the base of Miocene oxygen isotope zone Mi1b (Wright & Miller 1992), but we lack a bioevent proxy to locate it at Tangakaka.…”

Section: Overviewmentioning

confidence: 95%

“…At DSDP Site 593, the prominent enrichment spike (-0.06‰) in the δ 18 O signature for Globigerina woodi (Scott et al 1995) close to the FAD of Globorotalia zealandica may identify the same episode. Scott et al (1995) identified a lower enrichment spike at DSDP Site 593 (420.18 m, -0.05‰) as the base of Miocene oxygen isotope zone Mi1b (Wright & Miller 1992), but we lack a bioevent proxy to locate it at Tangakaka. The presence of Sphenolithus conicus and Globigerinoides ruber at Tangakaka contrasts with their absence in the equivalent interval at DSDP Site 593 and may indicate that the latter site was under cooler water.…”

Section: Overviewmentioning

confidence: 95%

“…The highest record of typical specimens is from 225.9 m (Z14/f317) and the highest tentative identification is from 276.4 m (Z14/f322). As at DSDP Site 593 (Scott et al 1995, fig. 1,2), the highest record is from the Globorotalia incognita Zone.…”

Section: Paleobathymetrically Useful Benthic Foraminifera (Continued)mentioning

confidence: 99%

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Integrated stratigraphy of the lower Altonian (Early Miocene) sequence at Tangakaka Stream, East Cape, New Zealand

Morgans

Scott

Edwards

et al. 2002

New Zealand Journal of Geology and Geophysics

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The biostratigraphy of a rapidly deposited, deep bathyal, lower Altonian (Early Miocene) sequence through Whakai Formation, East Cape, is presented. We interpret the depositional milieu, identify and describe foraminiferal and nannofossil bioevents potentially useful in biostratigraphy, and relate these to the magnetostratigraphy, 40 Ar/ 39 Ar ages, and ages using the Sr isotope sea-water curve. Although lower and upper contacts of the 623 m section through Whakai Formation are obscured, a high (c. 0.9 m/ka) flux of muddy sediment has produced an amplified record of most of the lower Altonian Globorotalia incognita Zone and the base of the overlying Globorotalia zealandica Zone. No significant breaks were identified. Benthic foraminiferal paleodepth proxies suggest that the site was on the lower slope (>1000 m) throughout, but the moderate abundance of planktonic taxa shows that it was not in fully oceanic water. Planktonic assemblages identify warm-temperate water masses. Abundance data for both nannofossils and planktonic G00062;

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Section: Overviewmentioning

confidence: 95%

Section: Overviewmentioning

confidence: 95%

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Integrated stratigraphy of the lower Altonian (Early Miocene) sequence at Tangakaka Stream, East Cape, New Zealand

Morgans

Scott

Edwards

et al. 2002

New Zealand Journal of Geology and Geophysics

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“…However, as the benthic δ 18 o record also exhibits a shift to heavier values over this interval, we infer that the planktic shift is real. The planktic record also contains enrichment spikes previously attributed by Scott et al (1994) to the glacials Mi1b, Mi1c, and Mi2. The enrichment in all three planktic records at c. 9.3 Ma lags the benthic slightly.…”

Section: Planktic Foraminiferamentioning

confidence: 99%

“…There is a general up-core trend to heavier values, with the heaviest at c. 6.5 Ma. Several enrichment events have been previously identified by Scott et al (1994), namely glacial zones Mi1b, Mi1c, and Mi2. additional events identified here occur at c. 13.4,12.6,11.6, and 9.4 Ma, with a general trend to lighter values from 6.2 Ma onwards.…”

Section: Benthic Foraminifera Benthic δmentioning

confidence: 99%

Miocene isotope zones, paleotemperatures, and carbon maxima events at intermediate water‐depth, Site 593, Southwest Pacific

Cooke

Nelson²,

Crundwell

2008

New Zealand Journal of Geology and Geophysics

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The PhanSST global database of Phanerozoic sea surface temperature proxy data

et al. 2022

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Paleotemperature proxy data form the cornerstone of paleoclimate research and are integral to understanding the evolution of the Earth system across the Phanerozoic Eon. Here, we present PhanSST, a database containing over 150,000 data points from five proxy systems that can be used to estimate past sea surface temperature. The geochemical data have a near-global spatial distribution and temporally span most of the Phanerozoic. Each proxy value is associated with consistent and queryable metadata fields, including information about the location, age, and taxonomy of the organism from which the data derive. To promote transparency and reproducibility, we include all available published data, regardless of interpreted preservation state or vital effects. However, we also provide expert-assigned diagenetic assessments, ecological and environmental flags, and other proxy-specific fields, which facilitate informed and responsible reuse of the database. The data are quality control checked and the foraminiferal taxonomy has been updated. PhanSST will serve as a valuable resource to the paleoclimate community and has myriad applications, including evolutionary, geochemical, diagenetic, and proxy calibration studies.

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Planktic foraminiferal events in early Miocene Zones N.6 and N.7 at southwest Pacific DSDP Site 593: relation with climatic changes in oxygen isotope Zone Milb

Cited by 5 publications

References 17 publications

Integrated stratigraphy of the lower Altonian (Early Miocene) sequence at Tangakaka Stream, East Cape, New Zealand

Integrated stratigraphy of the lower Altonian (Early Miocene) sequence at Tangakaka Stream, East Cape, New Zealand

Miocene isotope zones, paleotemperatures, and carbon maxima events at intermediate water‐depth, Site 593, Southwest Pacific

The PhanSST global database of Phanerozoic sea surface temperature proxy data

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