热带海洋学报
熱帶海洋學報
열대해양학보
JOURNAL OF TROPICAL OCEANOGRAPHY
2015年
2期
76-84
,共9页
祁江豪%张训华%吴志强%丘学林%赵明辉%夏少红%郭兴伟%郝天珧%郑彦鹏%方念乔
祁江豪%張訓華%吳誌彊%丘學林%趙明輝%夏少紅%郭興偉%郝天珧%鄭彥鵬%方唸喬
기강호%장훈화%오지강%구학림%조명휘%하소홍%곽흥위%학천요%정언붕%방념교
南黄海%海陆联测%地震数据处理%震相识别
南黃海%海陸聯測%地震數據處理%震相識彆
남황해%해륙련측%지진수거처리%진상식별
South Yellow Sea%onshore-offshore deep seismic survey%seismic data processing%seismic phase identification
为了研究渤海—山东半岛—南黄海一线的深部构造特征,利用海区气枪震源和陆区爆破震源探测,于2013年在胶东、渤海和南黄海布设了一条海陆联合深部地震探测剖面。海陆联测剖面包括渤海和南黄海两条海底地震仪(Ocean Bottom Seismometer, OBS)测线和一条陆上地震测线,是首次在南黄海地区布设的OBS深地震测线。文章对南黄海段测线上的海底地震仪数据进行了数据预处理,其中包括地震数据解编处理、截裁处理等,结果表明,此次实验海底地震仪记录质量良好,可以清晰地识别出 Ps、Pg、PmP 等多组震相,还首次观察到了来自千里岩隆起带上的 P 波震相,说明数据处理流程是可行的;再结合地质地球物理资料,初步分析了南黄海不同构造单元的震相特征,为下一步地壳速度结构的模拟及解释工作奠定了良好的基础。
為瞭研究渤海—山東半島—南黃海一線的深部構造特徵,利用海區氣鎗震源和陸區爆破震源探測,于2013年在膠東、渤海和南黃海佈設瞭一條海陸聯閤深部地震探測剖麵。海陸聯測剖麵包括渤海和南黃海兩條海底地震儀(Ocean Bottom Seismometer, OBS)測線和一條陸上地震測線,是首次在南黃海地區佈設的OBS深地震測線。文章對南黃海段測線上的海底地震儀數據進行瞭數據預處理,其中包括地震數據解編處理、截裁處理等,結果錶明,此次實驗海底地震儀記錄質量良好,可以清晰地識彆齣 Ps、Pg、PmP 等多組震相,還首次觀察到瞭來自韆裏巖隆起帶上的 P 波震相,說明數據處理流程是可行的;再結閤地質地毬物理資料,初步分析瞭南黃海不同構造單元的震相特徵,為下一步地殼速度結構的模擬及解釋工作奠定瞭良好的基礎。
위료연구발해—산동반도—남황해일선적심부구조특정,이용해구기창진원화륙구폭파진원탐측,우2013년재효동、발해화남황해포설료일조해륙연합심부지진탐측부면。해륙련측부면포괄발해화남황해량조해저지진의(Ocean Bottom Seismometer, OBS)측선화일조륙상지진측선,시수차재남황해지구포설적OBS심지진측선。문장대남황해단측선상적해저지진의수거진행료수거예처리,기중포괄지진수거해편처리、절재처리등,결과표명,차차실험해저지진의기록질량량호,가이청석지식별출 Ps、Pg、PmP 등다조진상,환수차관찰도료래자천리암륭기대상적 P 파진상,설명수거처리류정시가행적;재결합지질지구물리자료,초보분석료남황해불동구조단원적진상특정,위하일보지각속도결구적모의급해석공작전정료량호적기출。
In order to study the deep tectonic characteristics along the line of Bohai Sea-Shandong Peninsula-South Yellow Sea, using marine air gun source and land explosive source detection, the Bohai Sea-Shandong Peninsula-South Yellow Sea onshore-offshore joint deep seismic survey profile was carried out in 2013. The onshore-offshore deep seismic profile comprises two ocean bottom seismometer (OBS) seismic lines in the Bohai Sea and the South Yellow Sea and one onshore
<br> seismic line. This is the first OBS seismic line in the South Yellow Sea. After data preprocessing of South Yellow Sea OBS, including data decoding and data cutting, etc., the results show that the OBS recording quality is good. We can not only identify the seismic phases such as Ps, Pg and PmP but also observe the P-wave seismic phases from the Qianliyan uplift zone for the first time, which means the data processing is feasible. Combined with geological and geophysical data, a preliminary analysis of the phase character in different structural units of the South Yellow Sea was carried out, laying a good foundation for future simulation and interpretation of crust velocity structure.