#Who mapped out the ocean floor in 1952 software#
After Tharp’s seminal work transforming bathymetric profiles into the first maps of the global seafloor, efforts were undertaken to digitize echo-sounding profiles creating new opportunities for analysis and integration as well as the development of new software tools and approaches for working with those data. Despite the sparseness of the input data, Marie Tharp and Bruce Heezen’s early seafloor maps are remarkably consistent with modern bathymetric maps that are based on orders of magnitude more observations.Īn important part of the legacy of Tharp’s work is codified in the evolution of bathymetric data synthesis efforts led by several of her contemporaries and successors at the Lamont-Doherty Earth Observatory (LDEO). These maps showed the fabric of seafloor in ways that could not have been achieved or communicated with traditional contour plots. Rather than creating traditional contour maps from isolated soundings, her work yielded physiographic diagrams based on sparse echo-sounding profiles that were complemented by stylized views based on her interpretation of the trends and texture of the seafloor. The illumination of the seafloor through Marie Tharp’s lens was instrumental in the plate tectonics revolution and fundamentally transformed our understanding of earth processes. We seek contributions at all scales, from regional studies to a global scope, as that pioneered by Marie Tharp. Contributions may address the role of faults, seafloor volcanism, magmatism, and hydrothermal circulations, in the construction and evolution of the ocean crust and lithosphere from mid-ocean ridges and transform faults, to mid-plate domains and subductions. Results of seafloor sampling, seismic imaging, seismicity studies or in-situ monitoring are also very welcome. To honour Marie Tharp’s profound and lasting contribution to plate tectonics and marine goesciences, this session seeks contributions addressing plate tectonics in the oceans, based primarily on information from seafloor mapping, including regular or high resolution bathymetry, seafloor imagery (sonar or optical) at all scales, geophysical imaging of the seafloor, in addition to satellite altimetry, and in situ observations (robots or submersibles). Marie Tharp co-authored the first papers describing the major fracture zones in the Central Atlantic (Chain, Romanche, Vema), and her work directly contributed to the recognition of the role of mid-ocean ridges in plate tectonics and oceanic accretion. She exposed the topography of a seafloor that turned out not to be flat, displaying instead features such as seamounts and volcanic chains, trenches, mid-ocean ridges, and transform faults.
Heezen, covered the Earth’s oceans and revealed with astonishing accuracy the submarine landscape.
Her physiographic maps, published with B. The pioneering seafloor mapping and visualization by Marie Tharp played a key role in the acceptance of the plate tectonic theory.
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