Abstract
The focus of this paper is on determination of the geometry and stratigraphic contact pattern of the Rustenburg Layered Suite (RLS) in the Northern Bushveld Complex area using available borehole data and trend surface analysis technique. This technique was used to analyse over one hundred borehole log data in the Northern Bushveld Complex in order to describe the geometric pattern and trends of the RLS rocks. The results demonstrate the usefulness of this technique in identifying structural features. Regional trends of each of the stratigraphic units reveal the presence of regional structures that were not obvious at the surface. This first part of the paper focused on the Northern Bushveld Complex, while the second and the third part focused on the eastern and western Bushveld limbs respectively.
Highlights
The Rustenburg Layered Suite (RLS) form laterally continues layers that can be correlated across the various limbs of the Bushveld Igneous Complex
The difference is expressed as root mean square, the smaller the root mean square the closer the fit between the measured points and the fitted surface. The effectiveness of this technique in studying subsurface structures was first demonstrated by [3] but has since been employed in different aspects of geology for stratigraphic and structure controlled resource exploration [4]-[11]. This method is widely used in studying the geometry and structural pattern in areas where change in relief pattern between successive stratigraphic units can be related to structural movements [12]-[15]
Patterns formed by structural contours on the floor rocks reveal the influence of the floor rocks on the morphology of the layered rocks
Summary
The Rustenburg Layered Suite (RLS) form laterally continues layers that can be correlated across the various limbs of the Bushveld Igneous Complex. The difference is expressed as root mean square, the smaller the root mean square the closer the fit between the measured points and the fitted surface The effectiveness of this technique in studying subsurface structures was first demonstrated by [3] but has since been employed in different aspects of geology for stratigraphic and structure controlled resource exploration [4]-[11]. This method is widely used in studying the geometry and structural pattern in areas where change in relief pattern between successive stratigraphic units can be related to structural movements [12]-[15]. It finds application in geophysical data analysis [1]
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