CAJ | 학술논문

珍贝—黄岩海山链作为我国南海的残留扩张中心，对其研究具有重要的科学意义．本文运用均衡学方法，通过重力异常数据反演了过珍贝—黄岩海山链剖面的地壳界面变化，同时计算了岩石圈热结构状态，在此基础上建立了珍贝—黄岩海山链的岩石圈地温结构模型．通过均衡分析方法，对剖面上测点的海底地形数据进行了热均衡和重力均衡分析，得到了热均衡和重力均衡形变量．结果表明，在珍贝—黄岩海山链高热流区域，热均衡作用可以产生最大约0．55 km 的形变，其重力均衡形变范围为0．77—1．89 km．热均衡通过改变海底地形和地壳物质密度不断作用于重力均衡，重力又反过来作用于热均衡，形成了热均衡-重力均衡动态调节机制．
진패—황암해산련작위아국남해적잔류확장중심，대기연구구유중요적과학의의．본문운용균형학방법，통과중력이상수거반연료과진패—황암해산련부면적지각계면변화，동시계산료암석권열결구상태，재차기출상건립료진패—황암해산련적암석권지온결구모형．통과균형분석방법，대부면상측점적해저지형수거진행료열균형화중력균형분석，득도료열균형화중력균형형변량．결과표명，재진패—황암해산련고열류구역，열균형작용가이산생최대약0．55 km 적형변，기중력균형형변범위위0．77—1．89 km．열균형통과개변해저지형화지각물질밀도불단작용우중력균형，중력우반과래작용우열균형，형성료열균형-중력균형동태조절궤제．
During the processing of isostatic gravity anomaly analysis,it was pointed that the isostatic correction of the South China Sea was not completely, especially in Zhenbei-Huangyan seamount chain.No reasonable explanation for this phenomenon has been proposed until now,and seamounts compensation mechanism remains unresolved.It is feasible and necessary to conduct the dynamic equilibrium research in this region.We combine the thermal and gravi-metric method to evaluate crustal density structure so as to establish the litho-spheric thermal structure of Zhenbei-Huangyan seamount chain based on the