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| Geological Survey of Solomon Islands | |
|---|---|
| Name | Geological Survey of Solomon Islands |
| Type | Government agency |
| Headquarters | Honiara |
Geological Survey of Solomon Islands
The Geological Survey of Solomon Islands is the principal national agency responsible for mapping, resource assessment, hazard evaluation, and geoscientific advisory services for the Solomon Islands chain, based in Honiara. It interfaces with regional bodies such as the Secretariat of the Pacific Community, SPC, Pacific Islands Forum, Asian Development Bank, and international partners including the United Nations Development Programme, Geological Survey of Japan, and British Geological Survey. Its remit spans collaborations with universities such as the University of the South Pacific, University of Papua New Guinea, and institutions like the Australian National University.
The Survey provides national geoscience data for planning by ministries including Ministry of Mines and Energy (Solomon Islands), Ministry of Environment, Climate Change, Disaster Management and Meteorology, and offices linked to the Office of the Prime Minister (Solomon Islands). It issues assessments used by agencies such as the World Bank, International Monetary Fund, Asian Development Bank, European Union, and non-governmental organizations like Conservation International and World Wildlife Fund. The organization liaises with donor missions from Government of Australia, New Zealand Ministry of Foreign Affairs and Trade, Japan International Cooperation Agency, and research programs at CSIRO, GNS Science, US Geological Survey, and Geological Survey of India.
The Solomon Islands archipelago lies on the active plate boundary between the Australian Plate and the Pacific Plate adjacent to the Woodlark Plate microplate and the Santa Cruz Islands region, with complexity related to the New Britain Trench, San Cristobal Trough, and the Vitiaz Trench. The area includes volcanic arcs such as the Bougainville Island arc, Guadalcanal volcanoes, and submarine features like the Solomon Sea bathymetry, intersecting with the Pacific Ring of Fire, Melanesia tectonic province, and remnants of the Ontong Java Plateau. Major tectonic structures involve the Tabar-Lihir-Tanga-Feni (TLTF) arc and subduction systems influencing seismicity witnessed in events like the 2007 Solomon Islands earthquake and tsunamis impacting Sikaiana Atoll and Santa Cruz Islands communities.
Early geological reconnaissance in the archipelago was conducted by explorers and colonial administrations including British Solomon Islands Protectorate officials, geologists from Imperial College London, and mining companies from Australia and New Zealand. Post‑World War II surveys involved teams from the US Geological Survey, Secretariat of the Pacific Community, and researchers associated with Harvard University and Cambridge University. Institutional development accelerated following independence with support from bilateral partners such as Australia and Japan and regional training via the University of the South Pacific and Fiji School of Medicine and Health Sciences for community resilience. Notable projects linked to the Survey’s predecessors involved assessments tied to companies like Bougainville Copper Limited, Ramu Nickel, and exploratory work by BHP and Rio Tinto in the western Pacific.
The Survey employs field mapping, geochemical sampling, geochronology, and remote sensing using satellites from programs like Landsat, Sentinel and airborne geophysics supplied with support from CSRIO partners and contractors such as Geoscience Australia. Research integrates techniques from laboratories at Australian National University, GNS Science, University of Tokyo, and National Institute of Advanced Industrial Science and Technology (AIST). Programs include mineral prospectivity mapping, geothermal assessment using techniques refined by New Zealand Geothermal Association, seismic monitoring in cooperation with the International Seismological Centre and Incorporated Research Institutions for Seismology, and tsunami modeling using frameworks developed by the Intergovernmental Oceanographic Commission and Pacific Tsunami Warning Center. Capacity building occurs through scholarships with University of Papua New Guinea, field schools operated with James Cook University, and technical exchanges with Geological Survey of Canada, Norwegian Geological Survey (NGU), and Federal Institute for Geosciences and Natural Resources (BGR).
The Survey documents mineral occurrences including gold and copper deposits analogous to deposits explored by Lihir Gold Limited, Panguna Mine, and porphyry systems studied in Bougainville, as well as nickel laterite resources similar to deposits targeted by Ramu Nickel. It evaluates industrial minerals, aggregates for infrastructure funded by the Asian Development Bank and World Bank, and offshore hydrocarbon potential within basins comparable to the Papua Basin and Gulf of Papua. Geothermal prospects near volcanic centers are appraised drawing on methods from the International Geothermal Association and projects modeled after development in New Zealand and Iceland. Artisanal mining impacts are assessed in communities such as Choiseul, Isabel Province, and Malaita Province with implications for licensing administered through the Ministry of Mines and Energy (Solomon Islands).
The Survey monitors seismic hazard, volcanic activity at centers like Tinakula and Kavachi, and tsunami risk for atolls including Ontong Java Atoll and Reef Islands, coordinating with Pacific Tsunami Warning Center and Office for the Coordination of Humanitarian Affairs. Landslide susceptibility mapping takes into account heavy rainfall events linked to Cyclone Harold and Cyclone Gita, and coastal erosion influenced by sea-level rise documented by Intergovernmental Panel on Climate Change reports. Hazard assessments inform disaster risk reduction programs led by National Disaster Council (Solomon Islands), United Nations Office for Disaster Risk Reduction, and NGOs such as Red Cross and Save the Children.
Geoscience data supports environmental impact assessments for projects undertaken by corporations like Newcrest Mining, China Metallurgical Group Corporation, and infrastructure financed by Asian Development Bank and World Bank. The Survey’s baseline studies underpin conservation planning in areas overlapping with Rennell and Bellona World Heritage considerations and marine protected areas involving Coral Triangle Initiative partners. Land use planning integrates sediment transport and reef health studies with marine biology research from Conservation International, BirdLife International, and regional fisheries science at Secretariat of the Pacific Community (SPC). Rehabilitation guidance for mine closure follows frameworks established by International Finance Corporation and Equator Principles adopted by lenders.
Category:Geology of the Solomon Islands Category:Government agencies of the Solomon Islands