搜索结果: 1-13 共查到“理学 central Mexico”相关记录13条 . 查询时间(0.102 秒)
Interaction of Cocos and Rivera plates with the upper-mantle transition zone underneath central Mexico
Mantle processes Phase transitions North America
2014/4/10
Receiver functions (RFs) from 224 permanent and temporary stations in central and southern Mexico were used to characterize the upper-mantle transition zone in that region. Discontinuities at 410 and ...
Generation of talc in the mantle wedge and its role in subduction dynamics in central Mexico
Subduction talc serpentine receiver function mantle wedge P-to-S velocity ratio
2014/4/10
Geophysical evidence shows the presence of low-seismic velocity material at the surface of slabs in subduction zones. In the central Mexican subduction zone this appears as a thin (～4 km) low-velocity...
Seismic structure in central Mexico: Implications for fragmentation of the subducted Cocos plate
Seismic structure in central Mexico The subducted Cocos plate
2014/4/10
The fine-scale seismic structure of the central Mexico subduction zone is studied using moderate-sized (M4-6) intraslab earthquakes. Regional waveforms from the Mapping the Rivera Subduction Zone (MAR...
Seismic imaging of the Cocos plate subduction zone system in central Mexico
Mexico inversion mantle wedge oceanic crust subduction zone volcanic arc
2014/4/10
Broadband data from the Meso-America Subduction Experiment (MASE) line in central Mexico were used to image the subducted Cocos plate and the overriding continental lithosphere beneath central Mexico ...
An Evaluation of Proposed Mechanisms of Slab Flattening in Central Mexico
Mexico flat slab subduction
2014/4/10
Central Mexico is the site of an enigmatic zone of flat subduction. The general geometry of the subducting slab has been known for some time and is characterized by a horizontal zone bounded on either...
Trace gas and particle emissions from domestic and industrial biofuel use and garbage burning in central Mexico
Trace gas garbage burning central Mexico
2010/2/1
In central Mexico during the spring of 2007 we measured the initial emissions of 12 gases and the aerosol speciation for elemental and organic carbon (EC, OC), anhydrosugars, Cl−, NO3−, an...
Aerosol optical properties relevant to regional remote sensing of CCN activity and links to their organic mass fraction: airborne observations over Central Mexico and the US West Coast during MILAGRO/INTEX-B
Aerosol optical properties regional remote sensing CCN activity organic mass fraction
2009/9/23
Remote sensing of cloud condensation nuclei (CCN) would help evaluate the indirect effects of tropospheric aerosols on clouds and climate. To assess its feasibility, we examined relationships of submi...
Geometry and seismic properties of the subducting Cocos plate in central Mexico
Geometry seismic properties subduction Cocos plate central Mexico
2014/4/10
The geometry and properties of the interface of the Cocos plate beneath central Mexico are determined from the receiver functions (RFs) utilizing data from the Meso America Subduction Experiment (MASE...
Swave velocity structure below central Mexico using high‐resolution surface wave tomography
S Wave velocity structure central Mexico high‐resolutionp surface wave tomography
2014/4/10
Shear wave velocity of the crust below central Mexico is estimated using surface wave dispersion measurements from regional earthquakes recorded on a dense, 500 km long linear seismic network. Vertica...
Fast airborne aerosol size and chemistry measurements above Mexico City and Central Mexico during the MILAGRO campaign
airborne aerosol Mexico City Central Mexico MILAGRO campaign
2008/11/13
The concentration, size, and composition of non-refractory submicron aerosol (NR-PM1) was measured over Mexico City and central Mexico with a High-Resolution Time-of-Flight Aerosol Mass Spectrometer (...
Seismic attenuation structure in central Mexico: Image of a focused high-attenuation zone in the mantle wedge
Seismic attenuation structure central Mexico Image of a focused high-attenuation zone the mantle wedge
2014/4/10
Velocity spectra from moderate-sized earthquakes were used to investigate the P wave attenuation structure in central Mexico. In particular, we included regional events with magnitudes in the range of...
Horizontal subduction and truncation of the Cocos Plate beneath central Mexico
Horizontal subduction truncation the Cocos Plate beneath central Mexico
2014/4/10
Based on analysis of data from a trans-Mexico temporary broadband seismic network centered on Mexico City, we report that the subducting Cocos Plate beneath central Mexico is horizontal, and tectonica...
Assessing lahars from ice-capped volcanoes using ASTER satellite data, the SRTM DTM and two different flow models: case study on Iztaccíhuatl (Central Mexico)
ice-capped volcanoes ASTER satellite data the SRTM DTM and two different flow models Iztaccíhuatl (Central Mexico)
2009/12/30
In this study, analysis of the glaciers on Iztaccíhuatl shows a dramatic retreat during the last 150 years: the glaciated area in 2007 corresponds to only 4% of the one in 1850 AD and the glaciers are...