Abstract
Crustal and upper mantle structure beneath three major sedimentary basins in SE and Central Brazil (Pantanal, Chaco and Paraná) will be studied by deploying about 40 temporary seismic stations. Together with the stations of the permanent Brazilian Seismic Network, a total of about 60 stations will be used in several different tomography studies to improve our knowledge of upper mantle processes and evolution of intracontinental basins. This multi-national project has partners from Bolivia (Observatório San Calixto), Paraguay (Universidad Nacional), Argentina (INPRES and Universidad de La Plata) and Uruguay (Universidad de la Republica) cooperating in setting up the stations and analysing the data. Partners from other universities in Brazil (IPT, UnB, UFRN, UFMS, UNESP, and Unipampa) and abroad (Northwestern University, USA; Liverpool and Royal Holloway London, UK; CSIC, Barcelona, Spain) will also cooperate in the analyses. In addition to the seismic studies, complementary high-precision geodetic studies will be conducted by INPE to a) study internal deformation of the South American plate and b) infer rheological properties of the lithosphere to contribute to the intepretation of upper mantle structure. Numerical models of upper mantle flow will help understand how deep convection and plate motion can affect crustal behavior, and cause dynamic topography, subsidence and seismogenic stresses. The equipment to be installed in the temporary network will come from a) 20 new equipment to be purchased by the Project, b) 20 loaned from the Brazilian Equipment Pool (managed by the National Observatory, Rio de Janeiro), and c) 10 loaned form Liverpool University. INPE will install 15 new GNSS stations and service the other existing stations of the Brazilian GNSS network. The Project requires purchase of new seismic equipment, some extra auxiliary equipment, expenses for field work (both to deploy the temporary stations as well as to service the permanent stations), travelling for collaboration with partners from neighboring countries, as well as student and staff exchange with NWU, Liverpool, RHWL, and CSIC. Scholarships for IC, PhD, and PD are also requested. (AU)
Scientific publications
(6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RODRIGUEZ, EMILY E.;
PORTNER, DANIEL EVAN;
BECK, SUSAN L.;
ROCHA, MARCELO P.;
BIANCHI, MARCELO B.;
ASSUMPCAO, MARCELO;
RUIZ, MARIO;
ALVARADO, PATRICIA;
CONDORI, CRISTOBAL;
LYNNER, COLTON.
Mantle dynamics of the Andean Subduction Zone from continent-scale teleseismic S-wave tomography.
Geophysical Journal International,
v. 224,
n. 3,
p. 1553-1571,
MAR 2021.
Web of Science Citations: 0.
ROCHA, M. P.;
ASSUMPCAO, M.;
AFFONSO, G. M. P. C.;
AZEVEDO, P. A.;
BIANCHI, M.
Teleseismic P Wave Tomography Beneath the Pantanal, Parana, and Chaco-Parana Basins, SE South America: Delimiting Lithospheric Blocks of the SW Gondwana Assemblage.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,
v. 124,
n. 7,
p. 7120-7137,
JUL 2019.
Web of Science Citations: 0.