Proposta de estradas-parque como unidade de conservação: dilemas e diálogos entre o Jalapão e a Chapada dos Veadeiros

Dutra, Veruska C.; Colares, Aracélio; Adorno, Lúcio Flavo Marini; Magalhães, Keile; Gomes, Kelson

doi:10.1590/s1982-45132008000100011

Cited by 4 publications

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“…The effects of the alternating dry (May to September) and humid (October to April) seasons on the region's lithologies have resulted in the receding escarpments of the Serra Geral and Chapada das Mangabeiras, since the Cretaceous. Thus, the geomorphology of this region is testimony for the regional natural history, in the form of diverse residual landforms (Benvindo, 2009;Dutra et al, 2008;Morais and Cristo, 2015;NATURATINS, 2003).…”

Section: Introductionmentioning

confidence: 99%

Understanding the origin of the airborne geophysical signatures of the Jalapão geomorphological units, Urucuia Basin, Central–Northern Brazil

Silva¹,

Alves²

2022

JGSB

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This study was carried out in order to understand the airborne geophysical signatures observed in the Jalapão region, Urucuia Basin, eastern Tocantins state. Airborne geophysical data (magnetic and gamma-ray spectrometry) and satellite images (Advanced Spaceborne Thermal Emission and Reflection Radiometer -ASTER) were processed and interpreted. I It was possible to characterize the main geomorphological units of the Jalapão region (residual landforms and dissected surfaces). The residual landforms (e.g., Serra do Espirito Santo and Occidental Baiano Plateau) have high concentrations of equivalent U (eU) and equivalent Th (eTh), and low K concentrations. ASTER image analysis suggests that these concentrations can be correlated with the products of chemical weathering (Fe oxides, clay, and weathering-resistant opaque minerals and other accessories). The dissected surfaces (mainly Jalapão Surface), however, is deficient in these radioelements, probably due to the quartz-rich nature of the related soils. Furthermore, the Jalapão Surface is practically non-magnetic, whereas residual landforms exhibit magnetic signals of low amplitude and high frequency, and are of unknown origin. The results suggest that the sources of these magnetic anomalies are shallow (≈ 270 m) and could be associated with ferrimagnetic minerals present in the alteration zone and/or in the ferruginous cements of the Serra das Araras Formation sandstones. The depth to basement in the region of this basin (1.44 km) rules out the possibility that the magnetic sources could be related to residual landforms.Understanding the origin of the airborne geophysical signatures of the Jalapão geomorphological units, Urucuia Basin, Central-Northern Brazil Accepted manuscript -Uncorrected pre-proofThis is a PDF file containing an unedited and non-definitive version of a manuscript that has been accepted for publication by the Journal of the Geological Survey of Brazil -JGSB, which serves to provide early visibility of the article. Being an uncorrected preproof version, errors may appear during the production process (language review, formatting and proof review), and these can affect the final content of the article and all legal disclaimers (https://jgsb.cprm.gov.br/index.php/journal/6).

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Section: Introductionmentioning

confidence: 99%

Understanding the origin of the airborne geophysical signatures of the Jalapão geomorphological units, Urucuia Basin, Central–Northern Brazil

Silva¹,

Alves²

2022

JGSB

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“…Soriano (2006) define estrada parque como uma unidade de conservação de grande beleza cênica, cujo formato e dimensões são definidos pela percepção das paisagens naturais e culturais a serem protegidas. Por outro lado, Dutra et al (2008) descrevem acerca das dificuldades para incluir estradas parque no universo das unidades de conservação. Este trabalho visa "aproximar" o conceito de estrada parque ao universo da infraestrutura de transportes, considerando as variáveis dominantes no caso das estradas tradicionais: projeto (geometria, terraplenagem e drenagem); construção (equipamentos, materiais e controle); operação (tráfego de veículos, restrições de fluxos e de horários); e manutenção (serviços para garantir as qualidades funcionais e estruturais da via).…”

Section: Introductionunclassified

Estradas parque do ponto de vista da infraestrutura de transportes

Ribeiro¹,

Lima²

2017

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A aplicabilidade do índice de qualidade de vida, da pegada ecológica do turismo e dos indicadores de sustentabilidade da Organização das Nações Unidas para destinos turísticos de pequeno porte: um estudo de caso no Jalapão/TO

Senna¹

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Proposta de estradas-parque como unidade de conservação: dilemas e diálogos entre o Jalapão e a Chapada dos Veadeiros

Abstract: Artigo recebido para publicação em 01/03/2007 e aceito para publicação em 18/03/2008 RESUMO:Este

Cited by 4 publications

References 1 publication

Understanding the origin of the airborne geophysical signatures of the Jalapão geomorphological units, Urucuia Basin, Central–Northern Brazil

Understanding the origin of the airborne geophysical signatures of the Jalapão geomorphological units, Urucuia Basin, Central–Northern Brazil

Estradas parque do ponto de vista da infraestrutura de transportes

A aplicabilidade do índice de qualidade de vida, da pegada ecológica do turismo e dos indicadores de sustentabilidade da Organização das Nações Unidas para destinos turísticos de pequeno porte: um estudo de caso no Jalapão/TO

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