Untitled

Greenland. ( 英 文 ). Nottvedt A; Johannessen E P;Surlyk F. Episodes, 2008, 31(1): 59-65Thick Mesozoic sediments are found offshoreNorway and Denmark, and Mesozoic rocks arepresent and well exposed in Denmark, along thecoast of East Greenland and on the arctic islandsof Svalbard.During the Mesozoic, Scandinavia andGreenland were subject to major extension in theLate Permian-Early Triassic and Late Jurassic-Early Cretaceous, prior to Ceno-zoic opening ofthe North Atlantic. Deep basins developed alongthe rift zones of the North Sea and between EastGreenland and Norway, and were filled withsediments derived from mainland Scandinaviaand Greenland. The marginal areas bordering therift zones suffered less subsidence, as did theepicontinental Barents Sea.2008040556撞 击 构 造 和 事 件 — 北 欧 国 家 的 透 视 = Impactstructures and events - a Nordic perspective. ( 英文 ). Dypvik H; Plado J; Heinberg C; HakanssonE; Pesonens L J. Episodes, 2008, 31(1): 107-114Impact cratering is one of the fundamentalprocesses in the formation of the Earth and ourplanetary system, as reflected, for example in thesurfaces of Mars and the Moon. The Earth hasbeen covered by a comparable number of impactscars, but due to active geological processes,weathering, sea floor spreading etc, the numberof preserved and recognized impact craters onthe Earth are limited. The study of impact structuresis consequently of great importance in ourunderstanding of the formation of the Earth andthe planets, and one way we directly, on theEarth, can study planetary geology.The Nordic-Baltic area have about thirty confirmedimpact structures which makes it one ofthe most densely crater populated terrains onEarth. The high density of identified craters isdue to the level of research activity, coupledwith a deterministic view of what we look for. Inspite of these results, many Nordic structures arepoorly understood due to the lack of 3Dgeophysicalinterpretations, isotopeor other datingefforts and better knowledge of the amountof erosion and subsequent tectonic modifications.The Nordic and Baltic impact community isclosely collaborating in several impact-relatedprojects and the many researchers (about forty)and PhD students (some seventeen) promise thatthis level will continue for many more years.The main topics of research include geological,geophysical, and geochemical studies in combinationwith modeling and impact experiments.Moreover, the Nordic and Baltic crust containssome hundred suspect structures which call fordetailed analysis to define their origin.New advanced methods of analyzing geophysicalinformation in combination with detailedgeochemical analyses and numerical modelingwill be the future basic occupation of theimpact scientists of the region. The unique Cretaceous/Tertiaryboundary (K-T) occurrences inDenmark form an important source of informationin explaining one of the major mass2008040557中 国 东 南 地 区 中 生 代 、 新 生 代 盆 地 特 征 及 演化 = Mesozoic-Cenozoic Basin Features andEvolution of Southeast China. ( 英 文 ). Shu Liangshu;Zhou Xinmin; Deng Ping; Zhu Wenbin.Acta Geologica Sinica, 2007, 81(4): 573-586The Late Triassic to Paleogene(T_3-E) basinoccupies an area of 143100 km~2,being the sixtharea of the whole of SE China;the total area ofsynchronous granitoid is about 127300 km~2;itprovides a key for understanding the tectonicevolution of South China.From a new 1:1500000geological map of the Mesozoic-Cenozoic basinsof SE China,combined with analysis of geometricaland petrological features,some new insightsof basin tectonics are obtained.Advances includepetrotectonic assemblages, basin classificat...2008040558西 班 牙 伊 比 利 亚 半 岛 noroccidental 区 域 的 上侏 罗 统 = Upper Jurassic at noroccidental area ofIberian Peninsula (Spain). ( 其 他 ). Delvene G;Perez-Urresti I; Melendez G. Revista Espanolade paleontologia, 2007, 22(1): 63-76Upper Jurassic deposits i the North-westernIberian Range around the locality of Ricla(Zaragoza) form a thick carbonate and terrigenousmarly section showing an increasingcontent in siliciclastic components. The scarceammonite associations recorded significantlyimprove the biostratigraphic data, allowing delineateapproximately the zone boundaries, fromupper Oxfordian Bimammatum Biozone tolower Kimmeridgian(?) Platynota Biozone. Bivalveassociations in turn are rich and diversified,and their detail study supplies consistent informationto reconstruct sedimentary environmentalchanges.2008040559罗 马 尼 亚 喀 尔 巴 阡 山 脉 河 曲 地 区 晚 白 垩 世 沉积 地 层 学 = Stratigraphy of the Lower CretaceousSediments from the Carpathian BendArea,Romania. ( 英 文 ). Melinte-Dobrinescu M C;Jipa D C. Acta Geologica Sinica, 2007, 81(6):949-956The Lower Cretaceous sediments of the CeahlǎuNappe (from the bend region of the RomanianCarpathians) were investigated fromlithological and micropaleontological (calcare-169