Genesis of microbialites as contemporaneous framework components of deglacial coral reefs, Tahiti (IODP 310)
Genesis of microbialites as contemporaneous framework components of deglacial coral reefs, Tahiti (IODP 310)
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微生物岩作为塔希提岛冰消期珊瑚礁同期框架组成部分的起源（IODP 310）
DOI：
10.1007/s10347-009-0207-3
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发表时间：
2010
期刊：
影响因子：
1.8
通讯作者：
J. Peckmann
中科院分区：
文献类型：
--
作者：
H. Westphal;K. Heindel;M. Brandano;J. Peckmann
塔希提岛的脱冰礁(IODP 310)的特点是虫黄藻类珊瑚与微生物岩共存，它们构成了生物礁骨架的80%。微生物往往在营养更丰富的环境中形成的概念以前导致了这样的概念，即这种结壳比珊瑚骨架年轻得多，它们形成于珊瑚礁建筑的更深层，或者它们代表着对珊瑚礁生态系统的严重干扰。然而，从它们与珊瑚红藻的重复互层来看，大溪地珊瑚礁序列中的微生物石是在珊瑚在光照条件下生长后立即形成的。显然，IODP 310岩芯中存在的脱冰礁微生物岩不会受到陆地物质的溺水或窒息等干扰，也不是“灾难形式”。鉴于珊瑚和微生物岩在空间上非常接近地发育，来自火山腹地的河流或地下水输送造成的营养水平高度升高，不太可能是微生物岩异常庞大发展的原因。然而，大量的脱冰礁微生物岩通常局限于火山岛，这意味着适度的、可能是间歇性的营养水平升高有利于这种类型的微生物岩的形成。
Deglacial reefs from Tahiti (IODP 310) feature a co-occurrence of zooxanthellate corals with microbialites that compose up to 80 vol% of the reef framework. The notion that microbialites tend to form in more nutrient-rich environments has previously led to the concept that such encrustations are considerably younger than the coral framework, and that they have formed in deeper storeys of the reef edifice, or that they represent severe disturbances of the reef ecosystem. As indicated by their repetitive interbedding with coralline red algae, the microbialites of this reef succession of Tahiti, however, formed immediately after coral growth under photic conditions. Clearly, the deglacial reef microbialites present in the IODP 310 cores did not follow disturbances such as drowning or suffocation by terrestrial material, and are not “disaster forms”. Given that the corals and the microbialites developed in close spatial proximity, highly elevated nutrient levels caused by fluvial or groundwater transport from the volcanic hinterland are an unlikely cause for the exceptionally voluminous development of microbialites. That voluminous deglacial reef microbialites generally are restricted to volcanic islands, however, implies that moderately, and possibly episodically elevated nutrient levels favored this type of microbialite formation.
IODP 310 号探险队重建了末次冰消期期间南太平洋的海平面、气候和环境变化
影响因子：
1.2
作者：
Camoin;McInroy;IODP Expedition 310 Scientists including Felis
通讯作者：
IODP Expedition 310 Scientists including Felis
IODP 会议记录，310
DOI：
10.2204/iodp.proc.310.2007
发表时间：
2007
期刊：
影响因子：
--
作者：
Camoin;McInroy;Expedition 310 Scientists including Felis
通讯作者：
Expedition 310 Scientists including Felis