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婴商艾
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1 2 1 4 Vol.21 No ( : ) PROGRESS I N GEOPHYSICS Dec. 2006, (, ),,. :, ;, ;,,,.,, P313 A ( 2006) Micro-relief research on active fault in the coast of southeast Fujian and adjacent area HUA NG Qing-tuan, Z HENG Shao- peng ( Xia men Ce nter f or Eart hquake Prospecti ng and Researchi ng, Xia men , China) Abstract In the coast of southeast Fujian and adj acent area, well develop nort heast- trendi ng Changl e- Zhao' an fault zone and several northwest-trending faults. On analysis of the micro-relief, this paper deals with the Quaternary activity of faults in the coast of southeast Fujian and adjacent area, and the tectonic stress field in this region since late Pleistocene. The results indicate that : The NE-trending Changle- Zhao' an fault zone is c haracterized by the micro-relief of vertical and horizontal movements si nce Quaternary ti me, and those N W-trendi ng faults are obvi ousl y shown by si milar micro- relief ; These NE- & NW-trending faults in this region have undergone two tectonic stages in Quaternary ti me, i.e. early Quaternary and late Pleistocene ; Since late Pleistocene, these NE-trending faults occ ur with rightlateral strike-slipping, and those NW-trending faults take place of left-lateral strike-slipping, sho wing the WNW- ESE-trending principal co mpressional stress of regional tectonic stress field. Keywords active fault, micro-relief, t he coast of sout heast Fuji an 0,,, [ 1, 2].,,,, ;,,.,,,.,,. [ 3 6],,. 1 ( 1)., ; ,1950,,,1980 2,,.( E- mail : fj 126.co m)

2 Fig.1 Distribution of active faults in the coast of southeast Fujian F 1 ;F ( ) ;F ( ) ;F ( ) ;F ;F ;F ; F ; F ; F10,., : ( F2) ( ) ( F3) ( ) ( F4)., [ 1 ] m,,,,, ( F1),,,, [ 1]. [ 7,8] : ( F5) ( F6) ( F7) ( F8) ( F9) ( F10),,..

3 4, : ( ),.,.,,,. : 2.1..,, [ 5] ,,,, ( m), 3,, ( 1),, m m, 5 20 m,,,. 1 Photo.1 The northwest-trendi ng fault facet and scarp in the northwest of Houyuan,, ZK0034 al + pl, 41.0 m, ( Q3 ) m, mm/ a [ 2 ].,, , 6 7 m,, ( 2). [ 2],, ( m) ( 2 Fig.2 The geological and geo morphological section fro m Caita to Ganzhetou in Quanzhou 1. Q 2 4 m ;2. Q 1zl 4 + m ;3. Q al 3 + m ;4.Qal + pl 3 ;5. Q el 2 ;6. 6 ;7. 5 ;8.T 0 ;9. T1 A ;10. T1 B ;11.T A 2 ;12. T 2 B ;13.T 3 A ;14.

4 m), ;, 5 m., 2.7 mm/ a, 2.6 mm/ a. 2.2,,,,..,,,,, V ( 3),,,.,,, 40 m( 4).,, 5 m, ZK9, ( abp) ( m),, 10 m, m, 1.1 mm/ a.,,. 4 Fig.4 Offset of the gullies at southeast of Houdai 3 Fi g.3 Sketch map of NW-trendi ng fault canyon in Nantai wu 2.3.,,,,.,, 5 Fig.5 Offset of gullies at Shixi- Shangtouqi

5 4, : Fig.6 The geological and geo morphological section fro m Xiqiu to Chending Q 2 m 4 ;Q 1 m 4 ; Q 3 m 3 ; Q 3 m+eo 3 l ( ) ; Qdl + pl 3 ; Q el 2 ; AnO ; T3 B ; T 0 ;F 7 (,2001) Fi g.7 Interpretation of air- photos about offset of gulli es i n Xi anchun- Dagang area 1. ;2. ;3. ;4. ;5. ;6. ;7. ;8. ;9. ; 10.,.,,,,, 50 m( 5), ( ),,.,,. ( 6),

6 ,,, 20 m, 1 mm/ a,.,,,,.,,,, [ 3,4 ].,,,.,., 9, ( 7)..,,,.,,.,,,,. 7 V 1, 550 m,, V 2 V m, V m ( 8), V m( 9),, ( ) 10 4 abp, V 5 V 7 ( ) ( ) mm/ a,. 2.4, (, Q1-2) (, Q3) (, Q3) (, Q3) (, Q3),, 1 2 m. 8 V5 Fig.8 (,2001) Map of the measured offset of V5 gully 1. ;2. ;3. ;4. ;5. ;6. 9 V 7 Fig.9 (,2001) Map of the measured offset of V7 gully 1. ;2. ;3. ;4. ;5. ;6. ;7. ;8. ;9.

7 4, : ,.,,.,, 200 m, 200 m( 10 2), , 5.56 mm/ a.,, ( 11) :,, Q3, 8 10, 100 m,. ( ) 120,, 12 m, 10 m, Q3 Q4., 10 Fig.10 Distribution of all uvial- proluvial fans along the front of Mt. Baiyun 11 Fig.11 Interpretation of air- photo at the north si de of Yuanshan, Zhangzhou 1. ;2. ;3. ;4. ;5. ;6. ;7. ;8. ; 9. 2 ( ) Photo.2 The all uvial- prol uvi al material at Kengkou in the front of Mt. Baiyun,, ,, 70 78, 3,, ( ) 15, ,,, ( ) ( 10 )., m,, 1/ m, mm/ a.,,, ZK315

8 , m, Z K301, Q al m,,, mm/ a. 2.6,,.,,,.,,,,,.,,, 100 km, ; 30 km, 17.2 m.,, ;,, ;,,,.,,.,,,.,,.,,,.,.,,,,.,,,.,.,, ( 12). 3,,.,,., -.,.,. 12 Fig.12 The late Pleistocene tectonic stress field in the coast of southeast Fujian and adjacent area 4,, :,

9 4, : 1107.,,.,., 1 mm/ a, 5.56 mm/ a,.,, mm/ a, mm/ a ;, mm/ a.,,,,. ( References) : [ M]. :,1999. [ 2],,. [ A]. :, ( 7) [ C]. :,1999, [ 3],,,. [ A]. :, ( 8) [ C]. :,2001, [ 4],,,. [ J].,2001,17( 2), [ 5],,,. [ J].,2001,21( 2) : [ 6],,. Ms 8.1 [ J].,2005,48( 2) : [ 7],,. [ J].,1988,31( 3) : [ 8],,. [ J].,1990,33( 2) : [ 1],,,.

华山山前断裂中段晚第四纪活动的地貌表现及响应

华山山前断裂中段晚第四纪活动的地貌表现及响应第 7 卷第 4 期 2012 年 12 月震灾防御技术 Technology for Earthquake Disaster Prevention Vol. 7, No. 4 Dec., 2012 杨源源, 高战武, 徐伟,2012. 华山山前断裂中段晚第四纪活动的地貌表现及响应. 震灾防御技术,7(4): 335 347.