Hydrothermal Alteration Zones’ Magnetic Susceptibility Footprints and 3D Model of Iron Oxide-Copper-Gold (IOCG) Mineralization, Carajás Mineral Province, Brazil

Autor: Marcelo Leão-Santos, Roberto Moraes, Yaoguo Li, Maria Irene Raposo, Boxin Zuo

Publikováno v: Minerals, Vol 12, Iss 12, p 1581 (2022)

Brownfield areas are important targets of exploration; however, the extensive drilling present in these areas has not fully exploited their prospective potential. The appropriate use of drill hole cores in these areas can play an important role in de

Externí odkaz: https://doaj.org/article/137b4c69c5ea4620bb9ed8e26f221ffb

3‐D Magnetic Unstructured Inversion

Autor: Marcelo Leão-Santos, Xiangyun Hu, Lizhe Wang, Yi Cai, Mason Andrew Kass, Boxin Zuo

Publikováno v: Zuo, B, Hu, X, Wang, L, Cai, Y, Kass, M A & Leão-Santos, M 2021, ' 3-D Magnetic Unstructured Inversion ', Journal of Geophysical Research: Solid Earth, vol. 126, no. 11, e2021JB022668 . https://doi.org/10.1029/2021JB022668

Magnetic inversion methods based on structured grids have been used extensively in geomagnetic research. Nevertheless, structured grids limit the modeling capability and accuracy of models with arbitrary geometries. To address these challenges, 3-D m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb412bac24f5476566b5164c37fd44d0
https://doi.org/10.1029/2021jb022668

Low-latitude reduction-to-the-pole and upward continuation between arbitrary surfaces based on the partial differential equation framework

Autor: Shuang Liu, Marcelo Leão-Santos, Lizhe Wang, Mason Andy Kass, Xiangyun Hu, Boxin Zuo, Yi Cai

Publikováno v: Zuo, B, Hu, X, Leão-Santos, M, Cai, Y, Kass, M A, Wang, L & Liu, S 2021, ' Low-latitude reduction-to-the-pole and upward continuation between arbitrary surfaces based on the partial differential equation framework ', Geophysical Journal International, vol. 226, no. 2, pp. 968-983 . https://doi.org/10.1093/gji/ggab067

SUMMARY Magnetic surveys conducted in complex conditions, such as low magnetic latitudes, uneven observation surfaces, or above high-susceptibility sources, pose significant challenges for obtaining stable solutions for reduction-to-the-pole (RTP) an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa255a635ced78f3f6ceb14badd15f49
https://pure.au.dk/ws/files/289644878/Low_latitude_reduction_to_the_pole_and_upward_continuation_between_arbitrary_surfaces_based_on_the_partial_differential_equation_framework.pdf

Applicability of standard Euler deconvolution, modeling, and amplitude magnetic data inversion in Greenfield programs: The Leite target case study, Carajás Mineral Province, Brazil

Autor: Diogo Luiz Orphão de Carvalho, Fernando Matos, Marcelo Leão-Santos, Cantidiano Freitas, João Paulo Souza

Publikováno v: Interpretation. 3:T131-T143

The Leite target is located in Carajás Mineral Province and has a magnetic anomaly with 140 nT of amplitude, elongated in the northwest–southeast direction. Four exploratory drillholes were performed to test the magnetic anomaly. The test showed t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1502cd8127b91655513bb67f388574dc
https://doi.org/10.1190/int-2014-0192.1

Ground and borehole time domain electromagnetic response at disseminated iron oxide-copper-gold deposits, Carajás Mineral Province, Brazil

Autor: João Paulo Souza, Cantidiano Freitas, Daniel Brake, Marcelo Leão-Santos, Fernando Matos

Publikováno v: Near-Surface Asia Pacific Conference, Waikoloa, Hawaii, 7-10 July 2015.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d05bea8bd12e3680445ba01c3d69c875
https://doi.org/10.1190/nsapc2015-012