The Swedish Deep Drilling Program (SDDP) has been initiated to study fundamental problems of the dynamic Earth system, its natural history and evolution. Many key scientific questions can be addressed through in situ investigations only, requiring deep continental drilling. Some are unique to Scandinavia, most are of international interest and significance. At present, five core projects ( Fig. 1 ) with international teams are integrating scientific problems with societal and industrial applications. If SDDP succeeds to attract the funding required, Sweden will have a number of world‐class boreholes at key locations by 2020. Figure 1 Open in figure viewer PowerPoint Locations of SDDP drilling project proposals. PFDP—Postglacial Fault Drilling Project; PaMVAS—Palaeoproterozoic mineralized volcanic arc systems: the Skellefte District; COSC—Collisional Orogeny in the Scandinavian Caledonides; DRL—The Dellen Impact Crater, a geoscientific deep rock laboratory; SELHO—Svecofennian accretion, an example of the early structural evolution in a large hot orogen; CISP—Concentric Impact Structures in the Palaeozoic: the Lockne and Siljan craters. Background and inset image from Blue Marble Next Generation data set (NASA Earth Observatory, http://earthobservatory.nasa.gov/Features/BlueMarble/ ). 相似文献
Urbanization is the most prominent comprehensive geographical process based on human activities in the surface of the Earth, with obvious interdisciplinary characteristics. In recent years, new urbanization has become an important frontier issue both at home and abroad. Urbanization is also one of the most important frontier interdisciplinary directions and one of the key research areas of geosciences. Future Earth, the United Nations Sustainable Development Goals (SDGs) and the International Geographical Union’s Commission on Geography for Future Earth:Coupled Human-Earth Systems for Sustainability (IGU-GFE) all emphasize coupling relationship between urbanization and human-earth system and sustainable development. Based on the discussion of significance of urbanization research in interdisciplinary fields, this paper reviewed the progress of urbanization research and put forward challenges and opportunities of urbanization research, and its objectives and tasks. It is recommended to play the role of the multi-disciplinary cross-cutting characteristics and strengthen the scientific and technological support and basic research depth of urbanization in interdisciplinary fields. To face the international research frontier and meet China's major needs, we proposed the top-level design and scientific and technological layout for urbanization research as soon as possible so as to improve the influence, the right to speak and the initiative of China's urbanization research in the world and play the scientific and technological support role of basic research better to serve the country’s strategic needs. 相似文献
Subduction zones are one of the most critical types of plate boundary of the Earth system, crucial for the global geochemical recycling of the Earth system, genesis of island arc and continental crust, and mechanisms of earthquake and tsunami processes. Ocean drilling plays an essential role in advancing our understanding of the subduction processes. This paper highlights the recent progress and scientific goals of the international ocean drilling programs in subduction systems and discusses implications for strategic planning of the future ocean drilling initiatives. 相似文献