Oxygen and Carbon Isotopic Growth Record in a Reef Coral from the Florida Keys and a Deep-Sea Coral from Blake Plateau
Oxygen and Carbon Isotopic Growth Record in a Reef Coral from the Florida Keys and a Deep-Sea Coral from Blake Plateau
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佛罗里达群岛的珊瑚礁和布莱克高原的深海珊瑚的氧和碳同位素生长记录
DOI：
10.1126/science.202.4368.627
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发表时间：
1978
期刊：
影响因子：
56.9
通讯作者：
R. George
中科院分区：
文献类型：
--
作者：
C. Emiliani;J. H. Hudson;E. Shinn;R. George
对佛罗里达群岛母鸡和鸡礁（Hen and Chickens Reef, Florida Keys） 30年（1944 - 1974）生长的环斑蒙塔斯特雷（Montastrea annularis）进行的碳氧同位素分析表明，碳-13和氧-18的丰度每年都有很强的变化，两种同位素之间存在广泛的反比关系。正常的年度密集带在夏季形成，其特征是重碳和轻氧。“应力带”是在特别严寒的冬季形成的，其特征是重碳和重氧。虫黄藻代谢的同位素效应主导了温度对氧-18/氧-16比值的影响。对不存在虫黄藻的深海独居珊瑚Bathypsammia tintinnabulum的同位素结果表明，重同位素碳-13和氧-18的丰度与生长速率呈负相关，随着骨骼年龄的增加，碳和氧均接近平衡值。
Carbon and oxygen isotope analysis through a 30-year (1944 to 1974) growth of Montastrea annularis from Hen and Chickens Reef (Florida Keys) shows a strong yearly variation in the abundances of both carbon-13 and oxygen-18 and a broad inverse relationship between the two isotopes. Normal annual dense bands are formed during the summer and are characterized by heavy carbon and light oxygen. "Stress bands" are formed during particularly severe winters and are characterized by heavy carbon and heavy oxygen. The isotopic effect of Zooxanthellae metabolism dominates the temperature effect on the oxygen-18/oxygen-16 ratio. The isotopic results on the deep-sea solitary coral Bathypsammia tintinnabulum, where Zooxanthellae are nonexistent, indicates that the abundance of the heavy isotopes carbon-13 and oxygen-18 is inversely related to the growth rate, with both carbon and oxygen approaching equilibrium values with increasing skeletal age.