全文获取类型
| 收费全文 | 112篇 |
| 免费 | 4篇 |
专业分类
| 测绘学 | 2篇 |
| 大气科学 | 2篇 |
| 地球物理 | 19篇 |
| 地质学 | 24篇 |
| 海洋学 | 41篇 |
| 天文学 | 12篇 |
| 自然地理 | 16篇 |
出版年
| 2023年 | 1篇 |
| 2021年 | 1篇 |
| 2020年 | 2篇 |
| 2019年 | 1篇 |
| 2017年 | 2篇 |
| 2016年 | 3篇 |
| 2015年 | 2篇 |
| 2014年 | 1篇 |
| 2013年 | 5篇 |
| 2011年 | 4篇 |
| 2009年 | 6篇 |
| 2008年 | 2篇 |
| 2007年 | 6篇 |
| 2006年 | 5篇 |
| 2005年 | 4篇 |
| 2004年 | 6篇 |
| 2003年 | 5篇 |
| 2002年 | 3篇 |
| 2001年 | 3篇 |
| 2000年 | 2篇 |
| 1999年 | 1篇 |
| 1998年 | 7篇 |
| 1997年 | 2篇 |
| 1996年 | 5篇 |
| 1995年 | 2篇 |
| 1994年 | 2篇 |
| 1993年 | 1篇 |
| 1992年 | 1篇 |
| 1989年 | 2篇 |
| 1988年 | 1篇 |
| 1986年 | 1篇 |
| 1985年 | 1篇 |
| 1983年 | 1篇 |
| 1982年 | 3篇 |
| 1980年 | 3篇 |
| 1979年 | 5篇 |
| 1978年 | 1篇 |
| 1977年 | 4篇 |
| 1975年 | 4篇 |
| 1973年 | 1篇 |
| 1968年 | 1篇 |
| 1967年 | 2篇 |
| 1958年 | 1篇 |
排序方式： 共有116条查询结果，搜索用时 15 毫秒
101.
Haakon Fossen Jonny Hesthammer Tord Erlend Skeie Johansen Trond Olav Sygnabere 《Marine and Petroleum Geology》2003,20(10):1105-1118
The Huldra fault block is a rotated major fault block on the east margin of the Viking Graben in the northern North Sea. Unlike the rest of the Horda Platform area, the Jurassic section in the Huldra fault block was rotated more than 20° during slip on the listric Huldra fault, which forms a low-angle detachment beneath the Huldra fault block. The fault block is interpreted as resulting from marginal collapse of the Horda Platform after relief along the eastern margin of the Viking Graben built up in early parts of the middle to late Jurassic rifting history. The collapse resulted in NW directed transport of the Huldra fault block, consistent with a previously postulated change in extension direction from W–E to NW–SE toward the end of the Jurassic period. Minor faults within the Hulrda fault block are consistent with E–W extension and thus may have formed early during the late Jurassic rifting phase. Nevertheless, the crest (Huldra Field) seems surprisingly intact, considering its proximity to a major fault zone. Deformation bands studied from core material are non-cataclastic and concentrated in zones. Evidence for smearing along a cored fault surface indicates that minor subseismic faults may be sealing. Production data from the field indicate good communication between most wells, suggesting that the subseismic faults and deformation band zones that are present in the reservoir have relatively small influence on the flow of gas in the reservoir. 相似文献
102.
103.
104.
105.
Fish behaviour relevant to fish catchability 总被引：1，自引：0，他引：1
Walsh Stephen J.; Godo Olav Rune; Michalsen Kathrine 《ICES Journal of Marine Science》2004,61(7):1238-1239
106.
The Law of the Sea Convention constrains regional environmental regimes, especially with respect to navigation beyond the territorial sea. Existing soft-law institutions, notably the Arctic Council, have already strengthened environmental governance in the region by (1) improving the knowledge base; (2) preparing practical guidance on risk reduction; (3) highlighting in broader regulatory fora the Arctic dimension of problems like long-range transported hazardous compounds; and (4) supporting the capacity of Arctic states to implement existing commitments. None of those functions would be much enhanced by a legally binding Arctic environmental regime. The political impediments to reaching circumpolar agreement on a single comprehensive legal regime would suggest a flexible approach to norm building that seeks productive interplay with existing institutions. 相似文献
107.
Olav Hansen 《Icarus》1977,32(4):458-460
Sets of diameter determinations before and after opposition for the asteriods Ceres, Pallas, Vesta, and Fortuna have been studied statistically for indications of spin direction. All four asteriods are tentatively found to have prograde spin. For Ceres, that conclusion is virtually certain. 相似文献
108.
Olav Hansen 《Icarus》1977,32(2):229-232
A correlation between membership in a dynamically defined asteroid family and membership in a given asteroid spectral class is sought. Examination of 10 families each with five or more classified members indicates a correlation for the 4 families whose existence is best established, and no correlation for the remaining 6 families. This conclusion supports the break-up hypothesis for the origin of some families, while not contradicting that hypothesis for any family. 相似文献
109.
Relict Shorelines and Ice Flow Patterns of the Northern Puget Lowland From Lidar Data and Digital Terrain Modelling 总被引：1，自引：0，他引：1
Dori J. Kovanen Olav Slaymaker 《Geografiska Annaler: Series A, Physical Geography》2004,86(4):385-400
Airborne lidar data from the northern Puget Lowland provide information on the spatial variability and amplitude of raised postglacial shorelines, marine deltaic features and glaciomarine sediments deposited between approximately c. 12 920 and 11 050 14C yr BP (15 960‐12 364 cal yr BP). Relict shorelines preserved in embayments on Whidbey and Camano islands (between 47°54′N and 48°24′N) are found up to an altitude of c. 90 m and record glacio‐isostatic movements attributed to postglacial rebound. The tilt of the regional minimum highstand sea level surface to the north of 0.80 m km?1, with local variability from 0.25 m km?1 to 0.77 m km?1, is consistent with previous studies (Thorson 1989; Dethier et al. 1995). The local variability is related to the uncertainty in the depth of the water column above these features at the time of deposition and probable tectonic deformation. The information generated by these lidar data is most valuable in posing new research questions, generating alternative research hypotheses to those already formulated in the northern Puget Lowland. 相似文献
110.