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Projects > S - U > TEMPORE

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TEMPORE  

Definition

  • Proposal URL: http://classic.ipy.org/development/eoi/proposal-details.php?id=315 The existing general tectonic and structural maps of the Arctic and the Antarctic were published almost 30 years ago and featured mainly the Polar landmasses, whereas the offshore areas were left practically blank with only limited morphostructural information based on insufficient bathymetric knowledge. Since then, a vast amount of new data was accumulated in high latitudes, especially in their oceanic parts and continent-to-ocean transition zones where extensive geophysical and geological studies were accompanied by over-ice, submarine and ship-borne hydrographic surveys. On land the principal achievements were provided by modern isotope geochemistry methods that enabled better insight in crust-mantle relationships and improved dating of the earliest stages of geological history. As the result, a considerable progress in understanding the tectonic evolution of the Polar Regions was made, and at the same time new challenges for the future research came in sight. In particular, it became evident that conventional models of continent separation and sea floor spreading which could successfully be applied for Gondwana break-up and accompanying formation of the Southern Ocean were meeting serious difficulties in the North where their implementation appeared severely constrained by strong internal heterogeneity of the Arctic Ocean. Portraying the antipodal structures of the Arctic and the Antarctic and analyzing the resemblances and dissimilarities in their tectonic frameworks and histories will not only have a fundamental importance for global geodynamics but also contribute significantly to climate change research through improving knowledge of evolution of the Polar oceans and formation of seaways. The educational value of the project will arise from presentation in a condensed form of a variety of earth science data ranging from sub-aerial, sub-ice and submarine topography to configuration of the base of the Earth's crust, and from genetic classification of the major structural assemblages and features to their spatial distribution and reflection in potential fields. The final maps will be presented at 1:10,000,000 scales (with supplementary smaller scale insets) in a circum-polar projection encompassing the area to 60o N/S. The main objectives of the project include: (1) Integrating abundant Arctic and Antarctic geological data and tectonic interpretations disseminated in multinational literature into a coherent generalized legend that would allow the presentation of principal structural elements and historical particularities of both Polar Regions in a unified system of graphical designations and basic terms; (2) Compiling 1:10 M maps and smaller scale insets; (3) Preparing textual supplements to the cartographic products in the form of a short booklet and more extensive explanatory notes highlighting the tectonic essentialities of the Polar Regions in a comparative context; (4) Producing the first printed products by the time of 33rd Session of IGC (Oslo, 2008) and within the scope of IPY activities. Achieving project goals will require participation of many countries, organizations and individuals. Adequate coordination and scientific guidance of project activities will be provided by CGMW. The project is planned as a dedicated indoor effort not requiring special field expeditions and utilizing predominantly the already existing voluminous data. Additional new evidence relevant for the project purposes may, however, be readily assimilated from any 2006-2007 field activity executed by partner countries either on national basis, or within the IPY framework. (en)

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https://gcmd.earthdata.nasa.gov/kms/concept/43ae48b5-50da-41f1-ae64-91ff852ad89d

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