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  • Springer  (24)
  • 1
    Electronic Resource
    Electronic Resource
    A multi-national, multi-parameter marine study of the western Solomon Sea and Region (1987)
    Springer
    Geo-marine letters 6 (1987), S. 175-180 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract A geological /geophysical survey of the western Solomon Sea and Manus Basin, northeastern Bismarck Sea, was carried out in 1983-84. The results of the survey and associated studies are reported in this issue and a later issue ofGeo-Marine Letters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02239578
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  • 2
    Electronic Resource
    Electronic Resource
    The Trobriand Subduction System in the Western Solomon Sea (1987)
    Springer
    Geo-marine letters 7 (1987), S. 129-134 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract A south-dipping Subduction system which underlies the Trobriand Trough and 149° Embayment, on the southern margin of the Solomon Sea, is active or was recently active. Oceanic basement is overlain by 2.5 s, two-way travel time (TWTT), of sediment that shows at least two stages of deformation: early thrusts (inner wall) and normal faults (outer wall), and later normal faults that have elevated the outer trench margin. Thrust anticlines and slope basins are developed on the inner wall. The floor of the Solomon Sea Basin arches upward between the Trobriand Trough and the New Britain Trench to form isolated peaks and ridges in the east (152° Peaks) and an east-west Central Ridge in the west. Structures in the subduction system, and in the Solomon Sea Basin, plunge westward towards the point of collision with the New Britain Trench.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02238042
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  • 3
    Electronic Resource
    Electronic Resource
    Regional setting and structure of the western Solomon Sea (1987)
    Springer
    Geo-marine letters 7 (1987), S. 153-160 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The western Solomon Sea is bounded by the Paleogene collision complex of the Papuan Peninsula to the south, and land masses constructed by Cainozoic volcanism to the north and cast. Oblique collision of two trenches in the western Solomon Sea, and concomitant collision of upper plates, have produced structural complexities that may include the local doubling of crustal thickness, coincident with a strong negative gravity anomaly west of 149°E. Lateral flexing of the subducted plate in the New Britain Trench may have caused flexure of the upper plate; this flexure is expressed in the gravity field, faults, dip-slopes, exposure of basement, and alignment of volcanoes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02238045
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  • 4
    Electronic Resource
    Electronic Resource
    A multi-national, multi-parameter marine study of the Western Solomon Sea and region—Part II (1987)
    Springer
    Geo-marine letters 7 (1987), S. 119-120 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract In 1983–84, a cooperative geological/geophysical program was carried out in the western Solomon Sea and northeastern Bismarck Sea on the Japanese vesselNatsushima. Scientists representing Japan, Australia, Papua New Guinea, and the regional marine geoscience organization CCOP/SOPAC participated in the study. The first papers were published inGeo-Marine Letters, Volume 6, No. 4. This issue, containing six papers, is the second on the results of that work and the final of the special issues on the “Western Solomon Sea and Region.”
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02238040
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  • 5
    Electronic Resource
    Electronic Resource
    Convergent tectonics in the Huon Peninsula region, Papua New Guinea (1987)
    Springer
    Geo-marine letters 7 (1987), S. 143-152 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The anticlinal nappe which forms the Huon Peninsula and adjacent ranges extends offshore as the Huon Ridge. The frontal thrust of the nappe is the Ramu-Markham Fault (onshore) and a deformation front along the line of the Markham Canyon (offshore). The timing and geometry of the Finisterre arc-continent collision is controversial, and the origin of the Finsch Deep is unresolved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02238044
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  • 6
    Electronic Resource
    Electronic Resource
    Bathymetry and Canyons of the western Solomon Sea (1987)
    Springer
    Geo-marine letters 6 (1987), S. 181-191 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The floor of the western Solomon Sea (for new bathymetric map see inside back cover of this issue) is dominated by the arched and ridged basement of the Solomon Sea Basin, the partly-sediment-filled New Britain Trench, and a more completely filled trench, the Trobriand Trough. There is a deep basin where the trenches join (149° Embayment), and a silled basin west of the New Britain Trench (Finsch Deep). Submarine canyons descend from the west and south to the 149° Embayment. Abyssal fans and plains are structurally defined and locally disturbed by young faults. Probable submerged pinnacle reefs stand in water depths as great as 1,200 m.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02239579
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  • 7
    Electronic Resource
    Electronic Resource
    GLORIA surveys in frontier areas of the southwest Pacific Ocean (1993)
    Springer
    Geo-marine letters 13 (1993), S. 65-70 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract In August 1989, a geophysical survey in parts of the Exclusive Economic Zones of Vanuatu, Solomon Islands, Fiji, Tonga, and Western Samoa was conducted using a variety of techniques including GLORIA sidescan sonar, Seabeam wide-swath bathymetry, 3.5-kHz subbottom profiling, and dual-channel seismic reflection profiling. The data obtained are relevant to significant regional geotectonic problems, and their interpretation has helped to clarify some of these problems, identify areas where potential mineral deposits may be expected to occur, and in some cases, where geohazards may exist on the sea floor. The survey is described in this contribution, and the following papers in this special issue interpret the results of this work.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01204547
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  • 8
    Electronic Resource
    Electronic Resource
    Northern Lau Basin: Backarc extension at the leading edge of the Indo-Australian Plate (1993)
    Springer
    Geo-marine letters 13 (1993), S. 107-115 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract GLORIA imagery of the Lau Basin north of 17°S shows several morphotectonic terrains: a basement ridge and sedimented inter-ridge area in the SE; a nascent triple junction in the NE; a deeply sedimented basinal terrain in the central area; a linear neovolcanic zone striking NNESSW in the NW; and the northern flank of a leaky transform, the Peggy Ridge. Extension is now being accommodated at two main areas of spreading, but as no site of persistent long-term backarc crustal accretion is evident in this 250-km-wide portion of the basin, we conclude that past extension was largely by formation of pull-apart basins and local magmatism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01204552
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  • 9
    Electronic Resource
    Electronic Resource
    Geology, sediment patterns, and widespread deformation on the sea floor off Western Samoa revealed by wide-swath imagery (1993)
    Springer
    Geo-marine letters 13 (1993), S. 116-125 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract GLORIA and SeaMARC II sea-floor images of offshore Western Samoa reveal large-scale mass movements, volcanism, and structural modification. These processes are driven by hot-spot mantle diapirism and nearby plate subduction. Debris avalanche deposits extend from the island slope onto the adjacent abyssal plains, covering at least 20,000 km2. Sediment flows occur in sheets up to 30 km wide; slump structures are common on steep slopes. Volcanic cones and lava sheets are evident on lower slopes and abyssal plains. Major volcanic rift zones on the island of Savaii continue offshore. Subduction-induced flexure has produced intense tensional fracturing on the outer wall of the Tonga Trench.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01204553
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  • 10
    Electronic Resource
    Electronic Resource
    Tectonic and structural features of the Pacific/Indo-Australian plate boundary in the North Fiji-Lau Basin regions, southwest Pacific (1993)
    Springer
    Geo-marine letters 13 (1993), S. 126-131 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The SOPAC GLORIA survey covered principally an east—west region of the southwest Pacific approximately along latitude 16°S between longitudes 167°E and 171°W. Although a main objective was to determine the potential for seabed resources, the survey covered parts of the boundary between the Pacific and Indo-Australian plates and therefore addresses fundamental tectonic processes in these areas. The boundary is complicated and in some regions is not completely known. It is made more complicated by being unstable in places, making its history unclear. This paper brings together the general results of the survey as discussed by other contributions in this special issue to provide an overall interpretation, particularly as it relates to the major plate boundary through the region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01204554
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