Analysis and Interpretation of Regional Gravity Data in the Swayze greenstone belt of the Superior Province, Canada

IF 0.5 4区 地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS
Daniel Mauricio Satizabal Pazos, Bogdan Nitescu
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引用次数: 0

Abstract

The Swayze greenstone belt (SGB) is an Archean granitoid-greenstone terrain located in the central part of the Superior Province in Canada. The main objective of this project consisted in doing an analysis and modelling of public regional gravity data of the Swayze greenstone belt with the aim of examining the geometry and depth extent of the geological bodies that occur in the area of this greenstone belt. Gravity data from the Geophysical Data Repository of Natural Resources Canada was used to obtain forward 2.75D gravity models along three profiles, two transversal and one longitudinal to the geological structures of the Swayze greenstone belt. Gravity forward modelling along these profiles was performed using different constraints such as mapped geological contacts at the surface and petrophysical data of different type of rocks of the Abitibi greenstone belt. The models provide an attempt to characterize the geometry and depth extent of the geological units composing the SGB, using regional gravity data.
加拿大苏必利尔省Swayze绿岩带区域重力资料分析与解释
斯韦兹绿岩带(Swayze greenstone belt, SGB)是位于加拿大苏必利尔省中部的太古宙花岗岩绿岩带。该项目的主要目标是对Swayze绿岩带的公共区域重力数据进行分析和建模,目的是检查绿岩带区域内地质体的几何形状和深度范围。利用加拿大自然资源地球物理数据库的重力数据,获得了Swayze绿岩带地质构造沿3条剖面(2条横向剖面和1条纵向剖面)的2.75D正演重力模型。利用不同的约束条件,如已绘制的地表地质接触图和阿比提比绿岩带不同类型岩石的岩石物理数据,沿这些剖面进行重力正演模拟。这些模型提供了利用区域重力数据来描述构成SGB的地质单元的几何形状和深度范围的尝试。
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来源期刊
Geofisica Internacional
Geofisica Internacional 地学-地球化学与地球物理
CiteScore
1.00
自引率
0.00%
发文量
23
审稿时长
>12 weeks
期刊介绍: Geofísica internacional is a quarterly scientific journal that publishes original papers that contain topics that are interesting for the geophysical community. The journal publishes research and review articles, brief notes and reviews books about seismology, volcanology, spacial sciences, hydrology and exploration, paleomagnetism and tectonic, and physical oceanography.
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