Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL078142 |
Predicting Rates and Distribution of Carbonate Melting in Oceanic Upper Mantle: Implications for Seismic Structure and Global Carbon Cycling | |
Clerc, Fiona1; Behn, Mark D.2; Parmentier, E. M.3; Hirth, Greg3 | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:6944-6953 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Coupling a global mantle flow model with a parameterized carbonate solidus, we examine the global distribution and extent of carbonate melting beneath the ocean basins. We predict carbonate melting in spatially heterogeneous patterns throughout the oceans. The rate of CO2 segregation from the mantle by off-axis carbonate melting (similar to 1.1x10(12) mol/year) is comparable to the global ridge flux (similar to 1.2x10(12) mol/year). As the generation of carbonate melts should be enhanced in regions of mantle upwelling, we compare upwelling patterns with seismic detections of the G-discontinuity. The upwelling velocities in areas where the G-discontinuity is detected are not statistically different from areas with no detections-implying that the generation and pooling of carbonate melts are not dominant mechanisms in forming the G-discontinuity. However, detections of a deeper seismic discontinuity are correlated with enhanced upwelling velocities, suggesting locally higher melt fractions at the transition between carbonate-only and carbonate-enhanced silicate melting. |
英文关键词 | carbonate melt Gutenberg discontinuity oceanic upper mantle lithosphere-asthenosphere boundary deep carbon cycle |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100022 |
WOS关键词 | MIDOCEAN RIDGES ; CO2 FLUXES ; BENEATH ; ASTHENOSPHERE ; LITHOSPHERE ; VOLATILES ; 14-DEGREES-N ; CONSTRAINTS ; SYSTEMATICS ; EXTRACTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26644 |
专题 | 气候变化 |
作者单位 | 1.MIT WHOI Joint Program Oceanog Appl Ocean Sci & E, Woods Hole, MA 02543 USA; 2.Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA; 3.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA |
推荐引用方式 GB/T 7714 | Clerc, Fiona,Behn, Mark D.,Parmentier, E. M.,et al. Predicting Rates and Distribution of Carbonate Melting in Oceanic Upper Mantle: Implications for Seismic Structure and Global Carbon Cycling[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):6944-6953. |
APA | Clerc, Fiona,Behn, Mark D.,Parmentier, E. M.,&Hirth, Greg.(2018).Predicting Rates and Distribution of Carbonate Melting in Oceanic Upper Mantle: Implications for Seismic Structure and Global Carbon Cycling.GEOPHYSICAL RESEARCH LETTERS,45(14),6944-6953. |
MLA | Clerc, Fiona,et al."Predicting Rates and Distribution of Carbonate Melting in Oceanic Upper Mantle: Implications for Seismic Structure and Global Carbon Cycling".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):6944-6953. |
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