Project Global: Ground


This exploration of our current day metropolitan condition as a system of systems deals with the crust of the Earth as a primary carrying capacitor of human activities, from the extraction of resources deep within the ground, to agricultural operations that barely scratch the surface.

Part 1: Lexicon

Part 2: Atlas



Part 1: Lexicon index

︎ Formation

    ︎ Kaapvaal Craton
    ︎ Johannesburg Dome
    ︎ Vredefort Dome
    ︎ Topsoil
    ︎ Müggelsee


︎ Measurement    ︎ Schwerbelastungskörper
    ︎ Mining Earthquakes
    ︎ Low-tech Soil Testing
    ︎ Soil Texture Triangle
    ︎ Geologic Time Scale 
    ︎ Stratigraphic Colum
    ︎ Geographic Information System
    ︎ Ecotone
    ︎ Cultural Landscape

︎ Prototype
    ︎ Unter den Linden
    ︎ Zoological Landscape
    ︎ Counterculture
    ︎ Cultural Agency
    ︎ Mine-pit Lakes
    ︎ Parliament of Things

︎ Land distribution
    ︎ 1913 Natives Land Act
    ︎ District Six
    ︎ Eavesdropping
    ︎ Reconciliation Policy
    ︎ Land Grabbing
    ︎ Land Acting
    ︎ The Red Ants
    ︎ #PutSouthAfricansFirst
    ︎ Suburban Enclaves
    ︎ Parallel State

︎ Extraction
    ︎ Cullinan Diamond Mine
    ︎ Platinum Group Metals
    ︎ Zamazamas
    ︎ Gold Rush Inertia
    ︎ Sinkhole
    ︎ Maize Doctor
    ︎ Coal Hands

︎ Infrastructure
    ︎ Gautrain
    ︎ Le-guba
    ︎ Lesotho Water Project
    ︎ Deutscher Wald
    ︎ Arrival City

︎ Production
    ︎ Safari Economy
    ︎ Agritourism
    ︎ Rainfall Line
    ︎ Upington Airport
    ︎ Tiergarten Transformation
    ︎ Pivot Irrigation
    ︎ Allotment Garden
    ︎ Bokoni Terracing
    ︎ Johannesburg Forestation
    ︎ Game Farming Cycle

︎ Waste
    ︎ Trümmerberg
    ︎ Fab-Soil
    ︎ Mining Waste Belt
    ︎ Sanitary Landfilling
    ︎ Soil Structure
    ︎ Biogas Technology

︎ Pollution
    ︎ Dry Stacked Tailings
    ︎ Water Pollution
    ︎ Soil Pollution
    ︎ Uranium Sandstorms
    ︎ Poaching

︎ Remediation
    ︎ European Green Belt
    ︎ Conservation Agriculture
    ︎ Airfield Urbanism
    ︎ Solar Park
    ︎ Gold Reef City
    ︎ Mine Pit Lake
    ︎ Loess Plateau
    ︎ Erosion Control




Johannesburg Dome

“ A key geomorphological component of the Johannesburg region. The ground is not as flat as it looks!”


This north-to-south sectional drawing shows the geological components of the Johannesburg Dome and its surroundings. The dome is located between Johannesburg and Tshwane, with the geological
strata
, or layers, mainly consisting of tonalitic basement granite-gneiss, intruded into mafic-ultramafic greenstone. As depicted towards the southern end of the section, towards the right, the prehistoric Witwatersrand Supergroup was deposited, and now dips southwards by about thirty degrees. The north is covered by the younger Transvaal Supergroup, and dips northwards about twenty degrees. The western side of the dome is surrounded by Swartkops Hill.1
        The dome is a fifty-kilometer-wide inlier of rocks dating back to the
Archaean Eon
, located in the center of the Kaapvaal Craton, and surrounded by outward-dipping Archean to Paleoproterozoic volcanic sedimentary rock, made up of shales and quartzites. Swartkops Hill acts as a geomorphological record of the deformation phases of the Johannesburg Dome. First, Ventersdorp lava collided into the Witwatersrand Supergroup, and then top to the south kinematic formed the recumbent fold orientation. Finally, it was folded by basal Transvaal sandstones.

Image source: Geological Journeys by Norman and Whitfield, 2006


References
1.  https://ui.adsabs.harvard.edu/abs/2018AGUFM.T41E0346L/abstract