Sánchez Joana P, Brilha José B R
Science and Technology Faculty, Geology, Federal University of Goiás, Rua Mucuri, s/n, Área 03, Setor Conde dos Arcos, 74968-755 Aparecida de Goiânia, GO, Brazil.
Institute of Earth Sciences, Pole of the University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
An Acad Bras Cienc. 2017 Apr-Jun;89(2):825-834. doi: 10.1590/0001-3765201720160081.
Terrestrial impact structures are geological and geomorphological features with particular importance to understand the history and evolution of the planet. Impact structures are scattered around the world but in many countries these features are under threat, essentially due to anthropic factors. Impact structures with higher scientific value should be considered as geological heritage and, consequently, be subjected to geoconservation strategies. In order to select the most important impact structures to be properly conserved and managed, this paper proposes a quantitative assessment method of the scientific value of these structures. The eight Brazilian impact structures were used to test this method that has the potential to be applied to any geological context in any country. The structures known as Araguainha Dome-MT and Serra da Cangalha-TO reached a higher scientific value, which justifies the need to develop geoconservation strategies and a proper management.
陆地撞击构造是具有特殊重要性的地质和地貌特征，对于理解地球的历史和演化至关重要。撞击构造遍布全球，但在许多国家，这些特征正受到威胁，主要是由于人为因素。具有较高科学价值的撞击构造应被视为地质遗产，因此应实施地质保护策略。为了选择最重要的撞击构造进行妥善保护和管理，本文提出了一种对这些构造科学价值的定量评估方法。利用巴西的八个撞击构造对该方法进行了测试，该方法有可能应用于任何国家的任何地质背景。被称为阿拉瓜伊尼亚圆顶 - 马托格罗索州和坎加尔哈山脉 - 托坎廷斯州的构造具有较高的科学价值，这证明有必要制定地质保护策略和进行适当管理。
