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• W4366264549 endingPage "104360" @default.
• W4366264549 startingPage "104360" @default.
• W4366264549 abstract "This review summarizes the results of nearly 50 years of application of geophysical data to study tectonic problems in Borborema Province (BP), Northeastern Brazil. Much information has been obtained from the interpretation of magnetic, gamma-ray spectrometry, gravity, seismological, magnetotelluric, deep seismic and heat flow data. The resulting picture is that, in comparison with other Brazilian geological domains, BP has a thin crust, a lithosphere with small effective elastic thickness, the presence of predominantly positive free-air gravity anomalies, besides the most expressive geoid anomaly, in addition to relatively high heat flow and intraplate seismicity. These facts reinforce the hypothesis that the BP lithosphere suffered a strong impact in Gondwana fragmentation. Predominantly positive free-air gravity anomalies reveal that part of the province has not yet reached isostatic equilibrium. Gravity data established the boundaries of the BP crustal block with neighboring blocks; in particular, the crustal boundary with the São Francisco Craton is located in the innermost regions of the marginal fold belt, tens of kilometers at the north of the conventional limit. Magnetic data allowed to infer the continuity of basement structures beneath sedimentary basins, in particular that BP continues to the Transbrasiliano Lineament, underneath the sedimentary of the Parnaíba Basin. In addition, enhanced magnetic maps made it possible assessing the amount of deformation associated with the major shear zones and identified a continental-scale Cretaceous dike system crossing the BP. Gamma-ray spectrometry data allowed extensive geological mapping of metasedimentary sequences, granitic intrusions and basement complexes. Seismological data allowed to recognize that major shear zones in BP have lithospheric significance. Deep seismic data evidenced a well-defined contrast between the upper and lower crust in BP (Conrad discontinuity). Magnetotelluric data revealed several deep geoelectrical anomalies in BP, some of them interpreted as relics of subduction zones. Intraplate seismicity studies allowed inferring that the current stress state in the BP upper crust is predominantly transcurrent. The list of open problems in BP is also expressive. Notable examples are: a) it has not yet been possible to define which type of orogeny (accretionary or intracontinental?) was dominant in the Neoproterozoic; b) the cause of the expressive geoid anomaly is unknown; c) the tectonic significance of the Transbrasiliano Lineament (collisional suture? Just an intracontinental shear zone?) is also unknown. Regarding economic applications, the use of geophysical data to prospect new ore deposits is still relatively poor. We hope that this review can contribute to increase the familiarity and acceptance of geophysical results by the geological community." @default.
• W4366264549 created "2023-04-20" @default.
• W4366264549 creator A5007020490 @default.
• W4366264549 creator A5029280086 @default.
• W4366264549 creator A5054076954 @default.
• W4366264549 creator A5077864188 @default.
• W4366264549 date "2023-06-01" @default.
• W4366264549 modified "2023-10-01" @default.
• W4366264549 title "A review of the geophysical knowledge of the Borborema Province, NE-Brazil, and tectonic implications" @default.
• W4366264549 cites W1595287361 @default.
• W4366264549 cites W1640940984 @default.
• W4366264549 cites W1861898698 @default.
• W4366264549 cites W1868309130 @default.
• W4366264549 cites W1942464098 @default.
• W4366264549 cites W1963495131 @default.
• W4366264549 cites W1966747335 @default.
• W4366264549 cites W1969361064 @default.
• W4366264549 cites W1970375515 @default.
• W4366264549 cites W1973259033 @default.
• W4366264549 cites W1982266835 @default.
• W4366264549 cites W1982588278 @default.
• W4366264549 cites W1983441852 @default.
• W4366264549 cites W1984434911 @default.
• W4366264549 cites W1985015771 @default.
• W4366264549 cites W1985832034 @default.
• W4366264549 cites W1987135569 @default.
• W4366264549 cites W1987143930 @default.
• W4366264549 cites W1988631879 @default.
• W4366264549 cites W1990335170 @default.
• W4366264549 cites W1990825689 @default.
• W4366264549 cites W1991041616 @default.
• W4366264549 cites W1991285842 @default.
• W4366264549 cites W1992762370 @default.
• W4366264549 cites W1998233410 @default.
• W4366264549 cites W1998309649 @default.
• W4366264549 cites W1999779922 @default.
• W4366264549 cites W2000192580 @default.
• W4366264549 cites W2005091733 @default.
• W4366264549 cites W2006054477 @default.
• W4366264549 cites W2008231899 @default.
• W4366264549 cites W2009567801 @default.
• W4366264549 cites W2013015520 @default.
• W4366264549 cites W2015443408 @default.
• W4366264549 cites W2016139753 @default.
• W4366264549 cites W2017614484 @default.
• W4366264549 cites W2019995818 @default.
• W4366264549 cites W2020474049 @default.
• W4366264549 cites W2022300144 @default.
• W4366264549 cites W2022649860 @default.
• W4366264549 cites W2024361351 @default.
• W4366264549 cites W2028720629 @default.
• W4366264549 cites W2035285032 @default.
• W4366264549 cites W2035931994 @default.
• W4366264549 cites W2039811845 @default.
• W4366264549 cites W2048072603 @default.
• W4366264549 cites W2048240400 @default.
• W4366264549 cites W2051504786 @default.
• W4366264549 cites W2051795230 @default.
• W4366264549 cites W2053233464 @default.
• W4366264549 cites W2053714520 @default.
• W4366264549 cites W2054747309 @default.
• W4366264549 cites W2056000855 @default.
• W4366264549 cites W2057669196 @default.
• W4366264549 cites W2058921468 @default.
• W4366264549 cites W2059300224 @default.
• W4366264549 cites W2063124836 @default.
• W4366264549 cites W2063547261 @default.
• W4366264549 cites W2069749143 @default.
• W4366264549 cites W2071003488 @default.
• W4366264549 cites W2071680290 @default.
• W4366264549 cites W2078224458 @default.
• W4366264549 cites W2083346270 @default.
• W4366264549 cites W2086554692 @default.
• W4366264549 cites W2087552445 @default.
• W4366264549 cites W2087973041 @default.
• W4366264549 cites W2088586000 @default.
• W4366264549 cites W2089566609 @default.
• W4366264549 cites W2090226309 @default.
• W4366264549 cites W2094371891 @default.
• W4366264549 cites W2098068539 @default.
• W4366264549 cites W2099208137 @default.
• W4366264549 cites W2099367338 @default.
• W4366264549 cites W2106383317 @default.
• W4366264549 cites W2107904053 @default.
• W4366264549 cites W2111826400 @default.
• W4366264549 cites W2112828658 @default.
• W4366264549 cites W2115798265 @default.
• W4366264549 cites W2117019993 @default.
• W4366264549 cites W2118503429 @default.
• W4366264549 cites W2118966552 @default.
• W4366264549 cites W2119933194 @default.
• W4366264549 cites W2123218432 @default.
• W4366264549 cites W2123786602 @default.
• W4366264549 cites W2138667010 @default.
• W4366264549 cites W2138880521 @default.
• W4366264549 cites W2143864336 @default.
• W4366264549 cites W2144430536 @default.
• W4366264549 cites W2153408818 @default.

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