Lourenco Pedro - Academia.edu (original) (raw)
Lourenco Pedro was born in 1973 eastern of Timor Leste, graduated MSc degree from Universiade de Coimbra Portugal, working with the Institute of Petroleum Geology of Timor Leste since 2013 until recently.
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UERJ - Universidade do Estado do Rio de Janeiro / Rio de Janeiro State University
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Papers by Lourenco Pedro
Journal of musculoskeletal disorders and treatment, Dec 31, 2018
<p&amp... more <p>Timor occupies a critical position within Wallacea and within the Indonesian throughflow, but its tectonic history remains poorly constrained compared to other parts of the region. Tectonic models typically divide the island into 1) Australian affinity rocks, including a thick sequence of Paleozoic and Mesozoic rocks and metamorphosed equivalents, and 2) Asian affinity rocks, made up of predominantly Cretaceous and Paleogene rocks and their metamorphosed equivalents, known as the Lolotoi Metamorphic Complex (LMC). New field mapping shows that the type-area of the LMC is pre-Permian basement exposed in an erosional window. Much of the previously mapped LMC is actually overlying alkaline Permian basalt. LA-ICPMS U-Pb ages for zircons, apatites and titanites from the LMC type-area are Precambrian and consistent with those from Gondwanan continental slivers that now form the basement of eastern Java and West Sulawesi. Such basement ages are also identified in peaks from inherited zircons from the LMC elsewhere in Timor. Basement faults separating the LMC from Triassic and Jurassic sediments contain white micas yielding Ar-Ar ages of c.38 Ma, which are within the age range of white micas from the Asian affinity Mutis metamorphic complex of West Timor. Zircon and apatite (U-Th)/He thermochronometric data and low vitrinite reflectance values across much of the study area do not support previous models suggesting Cenozoic overthrusting. However, close to the basement fault the thermochronometric data indicate rapid Eocene-Oligocene cooling and like the white mica ages, this is consistent with the thermal history of the Mutis complex of West Timor. On the basis of these data, we revive Barber’s (1978) interpretation that almost all of the pre-Neogene exhumed rocks of eastern Timor, including the Gondwanan rocks, resided in Sundaland during the Cenozoic. This finding has implications for the geodynamics of the Banda Arc, reconstructions of Wallacea, and the Neogene paleogeography of the Indonesian Throughflow.</p>
Trauma Cases and Reviews, 2018
The medial clavicle fracture is a rare injury and almost all the times conservatively treated. Th... more The medial clavicle fracture is a rare injury and almost all the times conservatively treated. Therefore, the number of operations reported in the literature are limited. Posterior dislocation can result in serious complications and such injuries require rapid diagnosis followed by effective treatment to avoid future complications. The present case reports a case of a 33-year-old healthy man that was involved in a high-fall, being diagnosed with a rare displaced medial clavicular fracture associated with an unstable posterior lateral fragment dislocation surgically treated. Imagiological images and intraoperative photographs are presented. The authors collected this case in order to report this rare and complex injury. The treatment chosen to manage seems to give a good functional and radiographic recovery.
Journal of musculoskeletal disorders and treatment, Dec 31, 2018
<p&amp... more <p>Timor occupies a critical position within Wallacea and within the Indonesian throughflow, but its tectonic history remains poorly constrained compared to other parts of the region. Tectonic models typically divide the island into 1) Australian affinity rocks, including a thick sequence of Paleozoic and Mesozoic rocks and metamorphosed equivalents, and 2) Asian affinity rocks, made up of predominantly Cretaceous and Paleogene rocks and their metamorphosed equivalents, known as the Lolotoi Metamorphic Complex (LMC). New field mapping shows that the type-area of the LMC is pre-Permian basement exposed in an erosional window. Much of the previously mapped LMC is actually overlying alkaline Permian basalt. LA-ICPMS U-Pb ages for zircons, apatites and titanites from the LMC type-area are Precambrian and consistent with those from Gondwanan continental slivers that now form the basement of eastern Java and West Sulawesi. Such basement ages are also identified in peaks from inherited zircons from the LMC elsewhere in Timor. Basement faults separating the LMC from Triassic and Jurassic sediments contain white micas yielding Ar-Ar ages of c.38 Ma, which are within the age range of white micas from the Asian affinity Mutis metamorphic complex of West Timor. Zircon and apatite (U-Th)/He thermochronometric data and low vitrinite reflectance values across much of the study area do not support previous models suggesting Cenozoic overthrusting. However, close to the basement fault the thermochronometric data indicate rapid Eocene-Oligocene cooling and like the white mica ages, this is consistent with the thermal history of the Mutis complex of West Timor. On the basis of these data, we revive Barber’s (1978) interpretation that almost all of the pre-Neogene exhumed rocks of eastern Timor, including the Gondwanan rocks, resided in Sundaland during the Cenozoic. This finding has implications for the geodynamics of the Banda Arc, reconstructions of Wallacea, and the Neogene paleogeography of the Indonesian Throughflow.</p>
Trauma Cases and Reviews, 2018
The medial clavicle fracture is a rare injury and almost all the times conservatively treated. Th... more The medial clavicle fracture is a rare injury and almost all the times conservatively treated. Therefore, the number of operations reported in the literature are limited. Posterior dislocation can result in serious complications and such injuries require rapid diagnosis followed by effective treatment to avoid future complications. The present case reports a case of a 33-year-old healthy man that was involved in a high-fall, being diagnosed with a rare displaced medial clavicular fracture associated with an unstable posterior lateral fragment dislocation surgically treated. Imagiological images and intraoperative photographs are presented. The authors collected this case in order to report this rare and complex injury. The treatment chosen to manage seems to give a good functional and radiographic recovery.