Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/2015TC004027 |
The crustal structure of south central Mongolia using receiver functions | |
He, Jing1,2,3; Wu, Qingju1; Sandvol, Eric3; Ni, James4; Gallegos, Andrea4; Gao, Mengtan1; Ulziibat, Munkhuu5; Demberel, Sodnomsambuu5 | |
通讯作者 | Gao, Mengtan |
来源期刊 | TECTONICS
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ISSN | 0278-7407 |
EISSN | 1944-9194 |
出版年 | 2016 |
卷号 | 35期号:6页码:1392-1403 |
英文摘要 | The crustal thickness H and average crustal velocity ratio k (Vp/Vs) beneath south central Mongolia are investigated using the H-k stacking method based on teleseismic radial receiver functions. Our primary results reveal that the local crustal thickness varies from 38 to 46 km with an average value of 43 km. Thicker crust is found beneath the western Hentey Mountains, while thinner crust is located in the southern area of the Zuunbayan fault zone. The Bouguer gravity anomalies exhibit a strong correlation with the overall crustal thickness pattern throughout most of our study regime. Moreover, a new approach which integrates the Bouguer anomaly gradient and the receiver function-derived crustal thickness is adopted to calculate the density of the lower crust underneath central Mongolia. Fairly dense lower crust of approximately 3000 kg/m(3) is found in the Middle Gobi Desert. The measured crustal Vp/Vs ratio ranges from 1.68 to 1.83 with an average value of 1.74. Low Vp/Vs ratio is found beneath the western Hentey Mountains. In general, low Vp/Vs ratios correlate well with regions of quartz-rich crust and high heat flow. High Vp/Vs ratios occur in the Middle Gobi volcanic regions and the Mesozoic Southern Gobi Basin. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA ; Mongolia |
收录类别 | SCI-E |
WOS记录号 | WOS:000381910200004 |
WOS关键词 | BAIKAL RIFT-ZONE ; SPINEL PERIDOTITE XENOLITHS ; UPPER-MANTLE BENEATH ; ASIAN OROGENIC BELT ; TECTONIC EVOLUTION ; VELOCITY STRUCTURE ; INNER-MONGOLIA ; CONTINENTAL-CRUST ; POISSON RATIO ; OKHOTSK OCEAN |
WOS类目 | Geochemistry & Geophysics |
WOS研究方向 | Geochemistry & Geophysics |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/196634 |
作者单位 | 1.China Earthquake Adm, Inst Geophys, Key Lab Seism Observat & Geophys Imaging, Beijing, Peoples R China; 2.China Earthquake Adm, Inst Crustal Dynam, Beijing, Peoples R China; 3.Univ Missouri, Dept Geol Sci, Columbia, MO USA; 4.New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA; 5.Mongolian Acad Sci, Res Ctr Astron & Geophys, Seismol Dept, Ulaanbaatar, Mongolia |
推荐引用方式 GB/T 7714 | He, Jing,Wu, Qingju,Sandvol, Eric,et al. The crustal structure of south central Mongolia using receiver functions[J]. New Mexico State University,2016,35(6):1392-1403. |
APA | He, Jing.,Wu, Qingju.,Sandvol, Eric.,Ni, James.,Gallegos, Andrea.,...&Demberel, Sodnomsambuu.(2016).The crustal structure of south central Mongolia using receiver functions.TECTONICS,35(6),1392-1403. |
MLA | He, Jing,et al."The crustal structure of south central Mongolia using receiver functions".TECTONICS 35.6(2016):1392-1403. |
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