DOI: 10.1016/j.epsl.2020.116407
论文题名: Stylasterid corals: A new paleotemperature archive
作者: Samperiz A. ; Robinson L.F. ; Stewart J.A. ; Strawson I. ; Leng M.J. ; Rosenheim B.E. ; Ciscato E.R. ; Hendry K.R. ; Santodomingo N.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 545 语种: 英语
中文关键词: biomineralisation
; deep-sea corals
; paleotemperature
; stable isotopes
; stylasteridae
英文关键词: Calcite
; Carbonate minerals
; Isotopes
; Carbon isotopic composition
; Chemical variability
; Geochemical proxies
; Linear relationships
; Paleotemperatures
; Seawater temperature
; Temperature calibration
; Temperature range
; Seawater
; biomineralization
; calibration
; carbon isotope
; coral reef
; oxygen isotope
; paleoceanography
; paleotemperature
; precipitation (chemistry)
; seawater
; stable isotope
; Anthozoa
; Stylasteridae
英文摘要: Stylasterids are a ubiquitous deep-sea coral taxon that build their skeletons from either calcite, aragonite, or both. Yet, robust geochemical proxy data from these corals are limited. In this study, 95 modern stylasterids, spanning a wide range of depths (63 to 2894 m) and ambient seawater temperatures (0 to 17 °C), were tested for their potential use as paleoceanographic archives. Stable oxygen and carbon isotopic composition (δ18O and δ13C) were measured from the main trunk of all specimens and five specimens were further sub-sampled to assess internal chemical variability. The isotope data show non-equilibrium precipitation from seawater for both δ18O and δ13C, with the growing tips of colonies yielding the isotopically lowest values. Overall, the calcitic corals showed lower isotope values for δ18O and δ13C than aragonitic specimens. Within the aragonite corals, we present a δ18O:temperature calibration that exhibits a significant linear relationship with the equation δ18Ocoral-seawater = −0.22(±0.01)×T(°C) + 3.33(±0.06) across a temperature range of 0 to 30 °C, using samples from this study and published data. This work highlights the potential application of stylasterid coral δ18O data to reconstruct paleo seawater temperature. © 2020 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165252
Appears in Collections: 气候变化与战略
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作者单位: School of Earth Sciences, University of Bristol, Bristol, United Kingdom; School of Earth and Ocean Sciences, Cardiff University, Cardiff, United Kingdom; National Environmental Isotope Facility, British Geological Survey, Keyworth, United Kingdom; School of Biosciences, University of Nottingham, Nottingham, United Kingdom; College of Marine Science, University of South Florida, St. Petersburg, United States; Inst. f. Geochemie und Petrologie, ETH Zürich, Zürich, Switzerland; Natural History Museum, London, United Kingdom
Recommended Citation:
Samperiz A.,Robinson L.F.,Stewart J.A.,et al. Stylasterid corals: A new paleotemperature archive[J]. Earth and Planetary Science Letters,2020-01-01,545