高密度电法技术在牡蛎礁勘查中的应用效果

Study on the high density resistivity method in oyster reef exploration

天津牡蛎礁是全新世以来海侵海退过程中在天津滨海平原留下的重要地质遗迹,是海陆变迁的佐证,对推演天津滨海平原的成陆史具有重要的科学价值。选用物探高密度电法探测手段对宁河县七里海罾口河南岸的牡蛎礁分布进行了试验研究,并布设了7个钻孔对高密度电法的探测结果进行验证。结果表明:高密度电法技术能经济、快速、有效地探测地下牡蛎礁的分布。

The Oyster reef in Tianjin is an important geological relic remaining at Tianjin coastal plain since Holocene and records evidence of the change of sea and land and is of scientific value for induction of formation of continent of Tianjin coastal plain. The new method, high density resistivity method was tested to detect oyster reef distribution at the south bank of Zengkou River in Qilihai town, Ninghe County. Seven holes were drilled to verify the method. The drilling result is coincident with that of the high density resistivity detection thus the method is economic, quick and effective.