Transition zone structure under a stationary hot spot: Cape Verde

被引：21

作者：

Helffrich, George ^{[1
]}

Faria, Bruno ^{[2
,3
]}

Fonseca, Joao F. B. D. ^{[3
,4
]}

Lodge, Alexandra ^{[1
]}

Kaneshima, Satoshi ^{[5
]}

机构：

[1] Univ Bristol, Bristol BS8 1RJ, Avon, England

[2] Inst Nacl Meteorol & Geofis, S Vicente, Cape Verde

[3] Inst Super Tecn, Dept Phys, P-1049001 Lisbon, Portugal

[4] Inst Super Tecn, ICIST, P-1049001 Lisbon, Portugal

[5] Tokyo Inst Technol, Meguro Ku, Tokyo 1528551, Japan

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 2010年 / 289卷 / 1-2期

关键词：

Cape Verde; hot spot; transition zone; receiver function; MANTLE PLUMES; HOTSPOTS; TOPOGRAPHY; BENEATH;

D O I：

10.1016/j.epsl.2009.11.001

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We report on a two-year seismic deployment in the Cape Verde Islands, one goal of which was to study the upper mantle to determine its structure under a hot spot that is stationary in the hot spot reference frame. We find from analysis of P-to-S receiver functions estimated from broadband seismic recordings that, within uncertainty, the time separation between the 410 and 660 km discontinuities is normal compared to radial earth models. Thus, to exist, even stationary hot spots do not require vertical thermal anomalies from deep melting sources anchored in the lower mantle or at the core-mantle boundary or their anomalies are narrower than similar to 250 km in the upper mantle. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：156 / 161

页数：6

共 50 条

[21] Mantle transition zone structure along a profile in the SW Pacific: thermal and compositional variations
Thomas, Christine
Billen, Magali I.
GEOPHYSICAL JOURNAL INTERNATIONAL, 2009, 176 (01) : 113 - 125
[22] Constraints on the structure of Maio Island (Cape Verde) by a three-dimensional gravity model: imaging partially exhumed magma chambers
Represas, Patricia
Catalao, Joao
Montesinos, Fuensanta G.
Madeira, Jose
Mata, Joao
Antunes, Carlos
Moreira, Mario
GEOPHYSICAL JOURNAL INTERNATIONAL, 2012, 190 (02) : 931 - 940
[23] Seismic Imaging of Transition Zone Discontinuities Suggests Hot Mantle West of Hawaii
Cao, Q.
van der Hilst, R. D.
de Hoop, M. V.
Shim, S-H
SCIENCE, 2011, 332 (6033) : 1068 - 1071
[24] Influence of Void Configurations on Hot Spot Temperature in PBXs under Impact Loading
Liu, Chun
Ou, Zhuo Cheng
Duan, Zhuo Ping
Huang, Feng Lei
PROPELLANTS EXPLOSIVES PYROTECHNICS, 2021, 46 (06) : 912 - 925
[25] Enhanced hot spot cooling using bonded superlattice microcoolers with a trench structure
Zhang, Yan
Zeng, Gehong
Hoffman, Christine
Bar-Cohen, Avram
Shakouri, Ali
IEEE TRANSACTIONS ON COMPONENTS AND PACKAGING TECHNOLOGIES, 2008, 31 (03): : 552 - 558
[26] Using Household Consumption and Expenditures Survey (HCES) data to assess dietary intake in relation to the nutrition transition: A case study from Cape Verde
Dop, Marie Claude
Pereira, Clodomir
Mistura, Lorenza
Martinez, Claudio
Cardoso, Edith
FOOD AND NUTRITION BULLETIN, 2012, 33 (03) : S221 - S227
[27] Mantle Shear-Wave Velocity Structure Beneath the Hawaiian Hot Spot
Wolfe, Cecily J.
Solomon, Sean C.
Laske, Gabi
Collins, John A.
Detrick, Robert S.
Orcutt, John A.
Bercovici, David
Hauri, Erik H.
SCIENCE, 2009, 326 (5958) : 1388 - 1390
[28] Modeling and simulation of transformer loading capability and hot spot temperature under harmonic conditions
Taheri, Shamsodin
Gholami, Ahmad
Fofana, Issouf
Taheri, Hamed
ELECTRIC POWER SYSTEMS RESEARCH, 2012, 86 : 68 - 75
[29] Structure of the mantle transition zone beneath the North China Craton
Si, Shaokun
Zheng, Yanpeng
Liu, Baohua
Tian, Xiaobo
JOURNAL OF ASIAN EARTH SCIENCES, 2016, 116 : 69 - 80
[30] Structure of the transition zone in a multilayer ingot prepared by electroslag remelting
Chumanov I.V.
Matveeva M.A.
Porsev M.A.
Russian Metallurgy (Metally), 2015, 2015 (6) : 490 - 493

← 1 2 3 4 5 →