Mud volcanoes of trinidad as astrobiological analogs for martian environments.
Mud volcanoes of trinidad as astrobiological analogs for martian environments.
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DOI：
10.3390/life4040566
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发表时间：
2014-10-13
期刊：
影响因子：
--
通讯作者：
Beckles DM
中科院分区：
文献类型：
--
作者：
Hosein R;Haque S;Beckles DM
特立尼达岛南部地区的11个陆上泥火山被研究为火星上可能存在微生物的模拟栖息地。11个泥火山的配置文件中提出的物理，化学，矿物学和土壤特性。泥火山对所有排放的甲烷气体进行了采样，始终保持在3%的体积。泥火山土的平均pH值为7.98。发现平均阳离子交换容量（CEC）为2.16 kg/mol，平均含水量百分比为34.5%。来自三个火山的样品，（i）Digity;（ii）Piparo和（iii）Devil's Woodyard用于在厌氧条件下培养细菌菌落，表明可能存在产甲烷微生物。特立尼达泥火山可以作为火星环境的类似物，因为在火星的Acidalia Planitia和Arabia Terra地区广泛发现了类似的地质特征。
Eleven onshore mud volcanoes in the southern region of Trinidad have been studied as analog habitats for possible microbial life on Mars. The profiles of the 11 mud volcanoes are presented in terms of their physical, chemical, mineralogical, and soil properties. The mud volcanoes sampled all emitted methane gas consistently at 3% volume. The average pH for the mud volcanic soil was 7.98. The average Cation Exchange Capacity (CEC) was found to be 2.16 kg/mol, and the average Percentage Water Content was 34.5%. Samples from three of the volcanoes, (i) Digity; (ii) Piparo and (iii) Devil’s Woodyard were used to culture bacterial colonies under anaerobic conditions indicating possible presence of methanogenic microorganisms. The Trinidad mud volcanoes can serve as analogs for the Martian environment due to similar geological features found extensively on Mars in Acidalia Planitia and the Arabia Terra region.