镉同位素在古环境重建中的应用: 以晚泥盆世弗拉期-法门期生物灭绝事件为例
The Application of Cd Isotopes in the Paleo-environment Reconstruction: A Case Study of the Frasnian-Famennian Mass Extinction Event in the Late Devonian
查看参考文献46篇
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文摘
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磷(P)是海洋初级生物不可或缺的营养元素,现代海水中溶解态镉与磷的含量线性关系极好,表明镉可能作为海洋初级生物的营养元素而被利用。浮游生物优先摄取轻的镉同位素,使得海水中的镉同位素变化与海洋初级生产力的变化紧密相关。目前镉同位素已成功应用于二叠纪-三叠纪之交古海洋初级生产力的重建。广西桂林晚泥盆世弗拉期-法门期(Frasnian- Famennian,F-F)之交杨堤剖面的镉同位素数据显示,在F-F灭绝事件前,δ~(114)Cd总体偏重(0. 03‰~ 0. 49‰) ,指示当时海洋具有较强的初级生产力; F-F之交,δ~(114)Cd呈现负偏(-0. 44‰~ -0. 01‰) ,表明这一时期海洋初级生产力显著下降; F-F灭绝事件后,δ~(114)Cd又逐渐增大(-0. 04‰~ 0. 13‰) ,反映灭绝事件后海洋初级生产力的恢复。海洋初级生产力的下降,导致了海洋生态系统中的食物链受到破坏,从而引发了F-F之交的生物灭绝事件。 |
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其他语种文摘
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Phosphorus is an essential nutrient for marine primary organisms. The excellent linear relationship between dissolved Cd and P in modern seawater indicates that Cd may be used as a nutrient element for marine primary organisms. The preference of phytoplankton to absorb light Cd isotopes makes the change of Cd isotopes in seawater closely related to the change of marine primary productivity. At present,Cd isotopes have been successfully used in the reconstruction of marine primary productivity at the turn of the Permian-Triassic periods. The Cd isotopic data of the Late Devonian Frasian- Famenian boundary (FFB) Yangdi profile in the Guilin area,Guangxi show that δ~(114)Cd values of carbonates below the FFB are relatively heavy in a range varying from 0. 03‰ to 0. 49‰,indicating a relatively high marine primary productivity, then those of carbonates in the FFB are abruptly decreased to negative in a range varying from -0. 44‰ to -0. 01‰ , suggesting a rapid decline of the marine primary productivity,and finally those of carbonates above the FFB are returned to normal levels varying from -0. 04‰ to 0. 13‰,indicating a recovery of the marine primary productivity after the F-F mass extinction event. Therefore,it is believed that the abrupt decline of marine primary productivity had resulted in the destruction of food chain in the marine ecosystem,and subsequently the FFB mass extinction event. |
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来源
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矿物岩石地球化学通报
,2020,39(1):80-88 【核心库】
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DOI
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10.19658/j.issn.1007-2802.2019.38.088
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关键词
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镉同位素
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初级生产力
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生物灭绝
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晚泥盆世
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弗拉期-法门期(F-F)
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地址
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1.
浙江大学海洋学院, 浙江, 舟山, 316021
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中国科学院地球化学研究所, 矿床地球化学国家重点实验室, 贵阳, 550081
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中国科学院大学, 北京, 100049
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中国科学院地球科学研究院, 北京, 100029
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-2802 |
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学科
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海洋学 |
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基金
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中国科学院战略性先导科技专项
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中国科学院贵阳地球化学研究所矿床地球化学中国科学院重点实验室基金
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国家自然科学基金项目
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贵州省项目
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文献收藏号
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CSCD:6667209
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参考文献 共
46
共3页
|
|
1.
Abouchami W. Modulation of the Southern Ocean cadmium isotope signature by ocean circulation and primary productivity.
Earth and Planetary Science Letters,2011,305(1/2):83-91
|
被引
12
次
|
|
|
|
|
2.
Abouchami W. Biogeochemical cycling of cadmium isotopes in the Southern Ocean along the Zero Meridian.
Geochimica et Cosmochimica Acta,2014,127:348-367
|
被引
9
次
|
|
|
|
|
3.
Abouchami W. A common reference material for cadmium isotope studies-NIST SRM 3108.
Geostandards & Geoanalytical Research,2012,37:5-17
|
被引
8
次
|
|
|
|
|
4.
Boyle E A. On the marine geochemistry of cadmium.
Nature,1976,263(5572):42-44
|
被引
14
次
|
|
|
|
|
5.
Buggisch W. The global Frasnian-Famennian Kellwasser event.
Gelologische Rundschau,1991,80(1):49-72
|
被引
17
次
|
|
|
|
|
6.
Chen D Z. The Late Devonian Frasnian-Famennian(F/F) biotic crisis: Insights from δ~(13)Ccarb ,δ~(13)Corg and ~(87)Sr/~(86)Sr isotopic systematics.
Earth and Planetary Science Letters,2005,235(1/2):151-166
|
被引
20
次
|
|
|
|
|
7.
Chen D Z. Carbon isotope excursions and sea-level change: Implications for the Frasnian-Famennian biotic crisis.
Journal of the Geological Society,2002,159(6):623-626
|
被引
7
次
|
|
|
|
|
8.
Chen D Z. Carbonate platform evolution: From a bioconstructed platform margin to a sand-shoal system (Devonian,Guilin,South China).
Sedimentology,2002,49(4):737-764
|
被引
6
次
|
|
|
|
|
9.
Chen D Z. The Frasnian-Famennian mass extinction: Insights from high-resolution sequence stratigraphy and cyclostratigraphy in South China.
Palaeogeography Palaeoclimatology Palaeoecology,2003,193(1):87-111
|
被引
22
次
|
|
|
|
|
10.
Chen D Z. Large sulphur isotopic perturbations and oceanic changes during the Frasnian-Famennian transition of the Late Devonian.
Journal of the Geological Society,2013,170(3):465-476
|
被引
3
次
|
|
|
|
|
11.
Conway T M. Biogeochemical cycling of cadmium isotopes along a high-resolution section through the North Atlantic Ocean.
Geochimica et Cosmochimica Acta,2015,148:269-283
|
被引
3
次
|
|
|
|
|
12.
Dopieralska J. Nd isotope composition of conodonts: An accurate proxy of sea-level fluctuations.
Gondwana Research,2016,34:284-295
|
被引
3
次
|
|
|
|
|
13.
Georgiev S V. Cadmium-isotopic evidence for increasing primary productivity during the late Permian anoxic event.
Earth and Planetary Science Letters,2015,410:84-96
|
被引
5
次
|
|
|
|
|
14.
Gong Y M. Orbital cyclostratigraphy of the Devonian Frasnian-Famennian transition in South China.
Palaeogeography Palaeoclimatology Palaeoecology,2001,168(3/4):237-248
|
被引
20
次
|
|
|
|
|
15.
Haskin L A. Meteoritic,solar and terrestrial rare-earth distributions.
Physics and Chemistry of the Earth,1966,7:169-321
|
被引
1
次
|
|
|
|
|
16.
Hendry K R. Cadmium and phosphate in coastal Antarctic seawater: Implications for Southern Ocean nutrient cycling.
Marine Chemistry,2008,112(3/4):149-157
|
被引
3
次
|
|
|
|
|
17.
Hohl S V. Cadmium isotope variations in Neoproterozoic carbonates-a tracer of biologic production?.
Geochemical Perspective Letters,2016,3(1):32-44
|
被引
2
次
|
|
|
|
|
18.
Horner T J. Isotopic fractionation of cadmium into calcite.
Earth and Planetary Science Letters,2011,312(1/2):243-253
|
被引
15
次
|
|
|
|
|
19.
Huang C. Timing and patterns of the Frasnian-Famennian event: Evidences from high-resolution conodont biostratigraphy and event stratigraphy at the Yangdi section,Guangxi,South China.
Palaeogeography,Palaeoclimatology,Palaeoecology,2016,448:317-338
|
被引
8
次
|
|
|
|
|
20.
Huang S J. Evolution of strontium isotopic composition of seawater from Late Permian to Early Triassic based on study of marine carbonates, Zhongliang Mountain,Chongqing,China.
Science in China Series D: Earth Sciences,2008,51(4):528-539
|
被引
16
次
|
|
|
|
|
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