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A new method for evaluating the spatial correspondence between surface and subsurface geological lineaments: A case from the Potiguar Basin, NE Brazil
Journal of South American Earth Sciences ( IF 1.7 ) Pub Date : 2022-09-08 , DOI: 10.1016/j.jsames.2022.104026
Cláudio Ângelo da Silva Neto , Daniel Rodrigues do Nascimento Junior , Cynthia Romariz Duarte , Eduardo Viana Freires , Karen Maria Leopoldino Oliveira

This paper provides a new technique for evaluating lineaments that focuses on the spatial link between surface and subsurface elements in a single layer. We chose a test area in northeast Brazil's Borborema Province. We extracted magnetic and relief lineaments from aeromagnetic and SRTM data. We defined the lineaments that agree on both layers using GIS operations. To identify the concordance between lineaments, we constructed kernel density maps that combined the data from each layer. We detected NE-SW solid conditioning of the structures. Even when evaluating only the concordant lineaments in other directions, they are expressed in groupings in NE-SW, as with NW-SE features, that associates with transfer failures and are contained by large NE-SW structures. The Atlantic Ocean's opening and expansion phases were linked to the E-W direction, also truncated by NE-SW lower density sections. The N–S trend was inexpressive. Areas with a higher density of concordant lineaments were associated with regions more susceptible to the Neotectonics of landform inversion, forming domes and arches-oriented NE-SW, as in Serra do Mel, Macau High, and Ponta Grossa High. Lower lineament density areas indicated visual correspondence with the most significant number of production wells in the Potiguar Basin, indicating that these regions are more favorable for the accumulation and trapping of hydrocarbons.



中文翻译:

一种评估地表和地下地质特征空间对应关系的新方法:以巴西东北部 Potiguar 盆地为例

本文提供了一种评估线条的新技术,该技术侧重于单层中表面和地下元素之间的空间联系。我们选择了巴西东北部 Borborema 省的一个试验区。我们从航空磁和 SRTM 中提取了磁和浮雕线条数据。我们使用 GIS 操作定义了在两个图层上一致的线条。为了确定线条之间的一致性,我们构建了结合每一层数据的核密度图。我们检测到结构的 NE-SW 固体调节。即使仅评估其他方向的一致轮廓,它们也会在 NE-SW 中以分组形式表示,与 NW-SE 特征一样,与转移失败相关联并包含在大型 NE-SW 结构中。大西洋的开放和扩张阶段与 EW 方向相关,也被 NE-SW 低密度剖面截断。N-S 趋势不具表现力。具有较高一致性线条密度的区域与更容易受到新构造运动影响的区域有关地形倒置,形成圆顶和拱形的 NE-SW,如 Serra do Mel、澳门高中和蓬塔格罗萨高中。线状密度较低的区域与 Potiguar 盆地中最重要的生产井数量直观对应,表明这些区域更有利于油气的聚集和圈闭。

更新日期:2022-09-12
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