Heterozoan carbonates in subtropical to tropical settings in the present and past

Heterozoan carbonates in subtropical to tropical settings in the present and past
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现在和过去亚热带到热带环境中的杂动物碳酸盐

DOI:
10.1007/s00531-010-0563-9
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发表时间:
2010
影响因子:
2.3
通讯作者:
Freiwald
Freiwald
中科院分区:
地球科学3区
文献类型:
--
作者:
Westphal;Halfar;Freiwald

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水温作为控制不同类型海相碳酸盐岩沉积物成因的重要因素,已受到广泛关注。然而,温度以外的参数也强烈影响生态系统,因此,在所产生的碳酸盐岩的碳酸盐颗粒协会。这些因素包括生物进化、水能量、基质、水化学、光穿透、营养条件、CO2浓度和海水中的Mg/Ca比。例如,暖水环境中营养水平的增加导致了以异养为主的协会,这是温带到冷水碳酸盐的特征。未能认识到这种环境因素的影响,使粮食协会向异养群落在低纬度地区可能会导致误解的气候条件在过去。低纬度异源动物碳酸盐的现代类似物有助于认识和理解过去的异源动物暖水碳酸盐。因此,需要对此类沉积物进行仔细分析,以便对过去的气候进行强有力的重建。
Water temperature has received considerable attention as steering factor for the genesis of different types of marine carbonate sediments. However, parameters other than temperature also strongly influence ecosystems and, consequently, the carbonate grain associations in the resulting carbonate rock. Among those factors are biological evolution, water energy, substrate, water chemistry, light penetration, trophic conditions, CO2concentrations, and Mg/Ca ratios in the seawater. Increased nutrient levels in warm-water settings, for example, lead to heterotrophic-dominated associations that are characteristic of temperate to cool-water carbonates. Failure to recognize the influence of such environmental factors that shift the grain associations towards heterotrophic communities in low latitudes can lead to misinterpretation of climatic conditions in the past. Modern analogues of low-latitude heterozoan carbonates help to recognize and understand past occurrences of heterozoan warm-water carbonates. Careful analysis of such sediments therefore is required in order to achieve robust reconstructions of past climate.
水深和成岩作用对使用钡作为古生产力指标的限制
DOI: 10.1144/gsl.sp.1992.064.01.18
发表时间: 1992
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DOI: --
发表时间: 1967
期刊:
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