A scientific 2D cross-sectional diagram of the Kola borehole shaft at 12km depth undergoing ductile closure.. Surrounding deep bedrock exhibits plastic flow, slowly creeping inward to fill and pinch the cylindrical borehole cavity.. Composition and framing: close-up, straight-on perpendicular diagrammatic view. view, featuring Centered graphic diagram focus, with the circular or cylindrical borehole cross-section as the focal midpoint surrounded by radial pressure lines.. Scientific visual elements: Visual strain contours showing stress distribution around a cylindrical cavity; ductile creep flow-lines within amphibolite rock texture; depth marker reading '-12,000 meters'.. Setting: presented on a clean, minimalist off-white editorial background. Color palette: Graphite gray, slate blue, vivid amber orange, warm line-art yellow.., hand-drawn 2D explainer cartoon illustration, thick clean black outlines, simplified readable forms, flat cel-style colors, soft minimal shading, clean educational YouTube illustration, clear focal hierarchy, no photorealism, no 3D rendering, no typography, no text, no watermarks
