干旱区生态环境知识资源中心(Arid): Near-surface neotectonic deformation associated with seismicity in the northeastern United States

Arid

DOI	10.2172/5403615
报告编号	NUREG/CR-5418
来源ID	OSTI_ID: 5403615
	Near-surface neotectonic deformation associated with seismicity in the northeastern United States
	Alexander, S.S.; Gold, D.P.; Gardner, T.W.; Slingerland, R.L.; Thornton, C.P. (Pennsylvania State Univ., University Park, PA (USA). Dept. of Geosciences)
英文摘要	For the Lancaster, PA seismic zone a multifaceted investigation revealed several manifestations of near-surface, neotectonic deformation. Remote sensing data together with surface geological and geophysical observations, and recent seismicity reveal that the neotectonic deformation is concentrated in a NS-trending fault zone some 50 km in length and 10--20 km in width. Anomalies associated with this zone include distinctive lineament and surface erosional patterns; geologically recent uplift evidenced by elevations of stream terraces along the Susquehanna River; and localized contemporary travertine deposits in streams down-drainage from the inferred active fault zone. In the Moodus seismic zone the frequency of tectonically-controlled lineaments was observed to increase in the Moodus quadrangle compared to adjacent areas and dominant lineament directions were observed that are perpendicular and parallel to the orientation of the maximum horizontal stress direction (N80-85E) recently determined from in-situ stress measurements in a 1.5 km-deep borehole in the seismic zone and from well-constrained earthquake focal mechanisms. 284 refs., 33 figs.
出版年	1989
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	58 GEOSCIENCES ; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS ; PENNSYLVANIA ; SEISMOLOGY ; ROCK MECHANICS ; HISTORICAL ASPECTS ; ROCKS ; DEFORMATION ; CALCIUM CARBONATES ; GEOLOGIC FAULTS ; GEOLOGY ; GEOPHYSICS ; LINEAMENTS ; SEISMIC EVENTS ; STRUCTURE FACTORS ; TECTONICS ; ALKALINE EARTH METAL COMPOUNDS ; CALCIUM COMPOUNDS ; CARBON COMPOUNDS ; CARBONATES ; FEDERAL REGION III ; GEOLOGIC FRACTURES ; GEOLOGIC STRUCTURES ; MECHANICS ; NORTH AMERICA ; OXYGEN COMPOUNDS ; USA 580201* -- Geophysics-- Seismology & Tectonics-- (1980-1989) ; 054000 -- Nuclear Fuels-- Health & Safety
URL	http://www.osti.gov/scitech/servlets/purl/5403615
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/264161
推荐引用方式 GB/T 7714	Alexander, S.S.,Gold, D.P.,Gardner, T.W.,et al. Near-surface neotectonic deformation associated with seismicity in the northeastern United States,1989.