Formation of diagenetic siderite in modern ferruginous sediments
Formation of diagenetic siderite in modern ferruginous sediments
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现代含铁沉积物中成岩菱铁矿的形成
DOI：
10.1130/g46100.1
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发表时间：
2019
期刊：
影响因子：
5.8
通讯作者：
Towuti Drilling P
中科院分区：
文献类型：
--
作者：
Vuillemin;Kemnitz;Schleicher;Friese;Simister;Nomosatryo;Ordoñez;Ariztegui;Benning;Kallmeyer;Russell;Bijaksana;Towuti Drilling P
在太古代和元古代，世界深海中普遍存在含铁条件。当时沉积的沉积铁层可能提供了环境条件的重要记录，但由于缺乏有关矿物在类似现代环境中形成过程的信息，将这些沉积岩的化学和矿物学与沉积条件联系起来仍然是一个挑战。我们确定了菱铁矿在含铁的Towuti湖，印度尼西亚，我们的特点是使用高分辨率显微镜和光谱成像结合微量化学和地球化学分析。我们推断早期成岩生长菱铁矿晶体作为沉积有机碳降解和孔隙沃茨中溶解无机碳积累的响应。我们认为菱铁矿的形成是通过先存菱铁矿晶体的同轴生长，或者可能是通过前体碳酸盐绿色锈的老化。晶体生长最终形成晶石大小（> 50 μm）的镶嵌状菱铁矿单晶，在埋藏过程中形成孪晶、束状和球状聚集体。早期形成的碳酸盐可通过微量化学环带和菱铁矿间隙中可能存在的残留相来检测。这表明，这种微化学分带和矿物包裹体可以用来推断古代沉积岩（包括沉积铁矿建造）中菱铁矿的生长历史。
Ferruginous conditions prevailed in the world’s deep oceans during the Archean and Proterozoic Eons. Sedimentary iron formations deposited at that time may provide an important record of environmental conditions, yet linking the chemistry and mineralogy of these sedimentary rocks to depositional conditions remains a challenge due to a dearth of information about the processes by which minerals form in analogous modern environments. We identified siderites in ferruginous Lake Towuti, Indonesia, which we characterized using high-resolution microscopic and spectroscopic imaging combined with microchemical and geochemical analyses. We infer early diagenetic growth of siderite crystals as a response to sedimentary organic carbon degradation and the accumulation of dissolved inorganic carbon in pore waters. We suggest that siderite formation proceeds through syntaxial growth on preexisting siderite crystals, or possibly through aging of precursor carbonate green rust. Crystal growth ultimately leads to spar-sized (> 50 μm) mosaic single siderite crystals that form twins, bundles, and spheroidal aggregates during burial. Early-formed carbonate was detectable through microchemical zonation and the possible presence of residual phases trapped in siderite interstices. This suggests that such microchemical zonation and mineral inclusions may be used to infer siderite growth histories in ancient sedimentary rocks including sedimentary iron formations.
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无定形碳酸铁 (II)：结晶能量学以及与二氧化碳封存相关的其他碳酸盐矿物的比较
DOI：
--
发表时间：
2012
期刊：
影响因子：
--
作者：
O. Sel;A. Radha;K. Dideriksen;A. Navrotsky
通讯作者：
A. Navrotsky
影响因子：
1.2
作者：
J. Russell;S. Bijaksana;H. Vogel;M. Melles;J. Kallmeyer;D. Arizteguí;S. Crowe;S. J. Fajar;A. Hafidz;D. Haffner;Ascelina K. M. Hasberg;S. Ivory;C. Kelly;J. King;Kartika Hajar Kirana;Marina A. Morlock;A. Noren;Ryan O’Grady;Luis Ordóñez;J. Stevenson;T. Rintelen;A. Vuillemin;I. Watkinson;N. Wattrus;S. Wicaksono;T. Wonik;K. Bauer;A. Deino;A. Friese;C. Henny;Imran;R. Marwoto;L. Ngkoimani;S. Nomosatryo;L. O. Safiuddin;R. Simister;G. Tamuntuan
通讯作者：
J. Russell;S. Bijaksana;H. Vogel;M. Melles;J. Kallmeyer;D. Arizteguí;S. Crowe;S. J. Fajar;A. Hafidz;D. Haffner;Ascelina K. M. Hasberg;S. Ivory;C. Kelly;J. King;Kartika Hajar Kirana;Marina A. Morlock;A. Noren;Ryan O’Grady;Luis Ordóñez;J. Stevenson;T. Rintelen;A. Vuillemin;I. Watkinson;N. Wattrus;S. Wicaksono;T. Wonik;K. Bauer;A. Deino;A. Friese;C. Henny;Imran;R. Marwoto;L. Ngkoimani;S. Nomosatryo;L. O. Safiuddin;R. Simister;G. Tamuntuan
印度尼西亚托乌提湖热带超镁铁质流域的气候和构造对源-汇过程的控制
影响因子：
2.1
作者：
Morlock M.A;Vogel H;Nigg V;Ordoñez L;Hasberg A.K.M;Melles M;Russell J.M;Bijaksana S. ;the TDP Science Team
通讯作者：
the TDP Science Team
影响因子：
5.2
作者：
Vuillemin A;Friese A;Alawi M;Henny C;Nomosatryo S;Wagner D;Crowe SA;Kallmeyer J
通讯作者：
Kallmeyer J
影响因子：
3.5
作者：
Ascelina K. M. Hasberg;S. Bijaksana;P. Held;J. Just;M. Melles;Marina A. Morlock;S. Opitz;J. Russell;H. Vogel;V. Wennrich
通讯作者：
Ascelina K. M. Hasberg;S. Bijaksana;P. Held;J. Just;M. Melles;Marina A. Morlock;S. Opitz;J. Russell;H. Vogel;V. Wennrich