CAJ | 학술논문

位于黔中隆起东缘的遵义断裂带由一系列规模不一的压型断裂组成。通过对断裂带内方解石脉及围岩的碳氧锶同位素测试分析：脉体的δ18OSMOW (14.9‰~17.88‰)较围岩的δ18OSMOW(22.3‰~24.4‰)明显偏小；脉体的δ13CPDB (﹣4.1‰~1‰)和围岩的δ13CPDB(﹣0.3‰~4.2‰)均在正常海相碳酸盐范围内；脉体的87Sr/86Sr（0.707902~0.708147）在三叠纪正常古海水范围内，表明断裂带流体主要来源于大气水与三叠系围岩之间水-岩相互作用。流体来源特征说明该断裂处于开启状态，油气封堵性差。
위우검중륭기동연적준의단렬대유일계렬규모불일적압형단렬조성。통과대단렬대내방해석맥급위암적탄양송동위소측시분석：맥체적δ18OSMOW (14.9‰~17.88‰)교위암적δ18OSMOW(22.3‰~24.4‰)명현편소；맥체적δ13CPDB (﹣4.1‰~1‰)화위암적δ13CPDB(﹣0.3‰~4.2‰)균재정상해상탄산염범위내；맥체적87Sr/86Sr（0.707902~0.708147）재삼첩기정상고해수범위내，표명단렬대류체주요래원우대기수여삼첩계위암지간수-암상호작용。류체래원특정설명해단렬처우개계상태，유기봉도성차。
Located at the east of the Central Guizhou Uplift, the Zunyi fracture zone is composed of series of varying scale pressure type fracture composition. C﹑O﹑Sr isotopic data of wall-rocks and cal-cite veins in the fracture zone show that the (14.9‰~17.88‰) of veins are obviously lower than the δ18OSMOW (14.9‰~17.88‰) of wall-rocks, the δ13CPDB(﹣4.1‰~1‰)of veins and the δ13CPDB (﹣0.3‰~4.2‰) of wall-rocks Were in the normal range of marine carbonate;the 87Sr/86Sr (0.707902~ 0.708147) of veins in the range of normal ancient Triassic waters ,which indicates that the fluids of the fracture zone mainly originated from the interaction of down-seeping meteoric water and wall-rocks. Description of the characteristics of the fracture fluid source is turned on, thus Oil and gas sealing property is bad.