Structural characterization of intracratonic strike-slip faults in the central Tarim Basin

Volcanic events‐related hydrothermal dolomitisation and silicification controlled by intra‐cratonic strike‐slip fault systems: Insights from the northern slope of the Tazhong Uplift, Tarim Basin, China

“…Accordingly, extensional segments of these NNE-trending strike-slip faults and the NW oriented en-echelon normal faults in the study area likely act as effective conduits for the upward transport of deep-seated high-temperature fluids (Figure 14). As a complement, we infer that the more commonly encountered dilatant microfractures that formed around fault tips during the initial stages of fault propagation (Baqués et al, 2010), and those induced by increasing displacements of sheared joints (Deng et al, 2019) may have been suitable conduits to further transmit deep-seated hot fluids to the Ordovician precipitation site.…”

“…Bioclastic wackestone with variable amounts of recrystallised fragments, including echinoderms, calcareous algae, crinoids, and sponge spicules is the most common rock type in the Yijianfang Formation. With the deepening of F I G U R E 3 General stratigraphic diagram of the northern slope of the Tazhong Uplift (modified from Qiu et al, 2019) and seismic crosssection of SN3 Fault (cited from Deng et al, 2019). For the location of SN3 Fault see Figure 1b seawater, the Late Ordovician depositional environment on the northern slope of the Tazhong Uplift gradually evolved from a carbonate platform to a ramp.…”

“…General stratigraphic diagram of the northern slope of the Tazhong Uplift (modified from Qiu et al., 2019) and seismic cross‐section of SN3 Fault (cited from Deng et al., 2019). For the location of SN3 Fault see Figure 1b…”

“…In the last 10 years, exploration practices on the northern slope of the Tazhong Uplift in the Tarim Basin have revealed that hydrothermally dolomitic and silicified carbonate within strike‐slip fault zones may serve as giant hydrocarbon reservoirs (Chen et al., 2015; He et al., 2017; Ma et al., 2019). Dynamic evolutionary processes and geometrical characteristics of these strike‐slip faults on the Tazhong Uplift have recently been fully researched (Deng et al., 2019; Han et al., 2017; Qiu et al., 2019). However, the following issues regarding the nature, source and mechanisms of diagenetic fluids are still debatable: (a) Lower Paleozoic carbonate formations on the northern slope of the Tazhong Uplift subjected to complicated tectonic evolution.…”

The Evolution of the Complex Anticlinal Belt With Crosscutting Strike‐Slip Faults in the Central Tarim Basin, NW China

“…Over the last few decades, significant advances in seismic processing and acquisition of new 3‐D data sets have revealed the existence of a spectacular intracratonic strike‐slip fault network developed across the central Tarim Basin (Deng et al, ). Exploration experiences suggest that these strike‐slip faults play key roles in reservoir formation and hydrocarbon accumulation (Han et al, ; Lu et al, ).…”