Detachment faulting in a bivergent core complex constrained by fault gouge dating and low-temperature thermochronology

Heineke, Caroline; Hetzel, Ralf; Nilius, Nils-Peter; Zwingmann, Horst; Todd, Andrew; Mulch, Andreas; Wölfler, Andreas; Glotzbach, Christoph; Akal, Cüneyt; Dunkl, İstván; Raven, Mark; Hampel, Andrea

doi:10.1016/j.jsg.2019.103865

Cited by 18 publications

(10 citation statements)

References 98 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through metasomatic dolomitization, recrystallization, and burial dissolution, the intergranular dissolved pores and intergranular dissolved pores are formed. In the later stage, it is subjected to strong hydrothermal transformation, the dissolution expanding based on the pre‐existing pores to form super‐large dissolution pores and fractures to improve the reservoir performance (Heineke et al, 2019; J. Wang & Wang, 2021; Wu et al, 2022; C. Zhang et al, 2020; Zhu et al, 2022). In hydrothermal dolomitization, thermal fluid rising from the deep enters the carbonate formation along the fault, on the one hand, leading to generation of dolomitization, On the other hand, CO 2 and H 2 S in the fluid have dissolution.…”

Section: Resultsmentioning

confidence: 99%

Section: Genetic Mechanism Of Gravity Flow Reservoirmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics, genetic mechanism, and hydrocarbon accumulation of Cambrian gravity flow in the eastern Gucheng area, Tarim Basin, China

Yan

Zhang²,

Bai

et al. 2023

Geological Journal

View full text Add to dashboard Cite

The platform margins of Gucheng and Luoxi in the Cambrian are developed on both sides of the eastern Tarim Basin. Based on the analysis of cores, thin sections, and seismic data of Luoxi platform margin slope areas, we systematically studied the formation condition, reservoir characteristics, and favourable accumulation factors of gravity flow. The types of gravity flow include debris flow, high‐density flow, and low‐density flow, and the high‐density flow reservoir is better. Hydrothermal fluids have an active effect on reservoir reconstruction. Six‐phase reefs are developed in the platform margin, and the lithology of the reservoir is algal framework dolomite and granular dolomite. Multi‐phase reefs form an inclined slope. The 3D seismic and geochemical data show that the platform margin reefs have karst unconformity characteristics. The platform margin slope has the requirements of geomorphology and reservoir source, and the total area of slope gravity flow is 5854 km2. The gravity flow in the Gucheng platform margin slope is near the Cheerchen fault zone, and tectonic movement forms the nose‐like structure. The gravity flow is between the source rocks of the Xidashan Formation and the Heituwa Formation. Hydrocarbon generation and caprock are both favourable for hydrocarbon accumulation. Multi‐phase events of hydrothermal fluids are favourable to the reservoir and hydrocarbon charging. Gravity flow is important for oil and gas exploration in the Tarim Basin.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Genetic Mechanism Of Gravity Flow Reservoirmentioning

confidence: 99%

Characteristics, genetic mechanism, and hydrocarbon accumulation of Cambrian gravity flow in the eastern Gucheng area, Tarim Basin, China

Yan

Zhang²,

Bai

et al. 2023

Geological Journal

View full text Add to dashboard Cite

show abstract

“…Low‐temperature thermochronology uses the temperature dependent accumulation of radioactive decay products in minerals, such as apatite and zircon, to determine a rock’s thermal history (e.g., Farley, 2002; Gallagher et al., 1998). This approach is applied to a variety of geological problems to resolve the thermal histories of low temperature systems (<250°C), such as exhumation, near‐surface tectonics, volcanism and shifts in climate (e.g., Bernard et al., 2016; Heineke et al., 2019; Jess et al., 2019; Karlstrom et al., 2019). Apatite (U‐Th‐Sm)/He has been used in previous studies investigating the thermal histories of hot springs due to the system’s sensitivity to low temperatures (Gorynski et al., 2014; Louis et al., 2019; Milesi et al., 2019, 2020), though this has a limited temporal and thermal resolution and is prone to intra‐sample age dispersion.…”

Section: Methodsmentioning

confidence: 99%

Determining the Lifespan of Hydrothermal Systems Using Thermochronology and Thermal Modeling

et al. 2021

View full text Add to dashboard Cite

Hydrothermal springs (or "hot springs") are the emergence of hot groundwater at the earth's surface (Pentecost et al., 2003;White, 1957). These springs reflect deep circulation of meteoric water that is heated in the upper ∼5 km of the earth's crust and are thought to reflect geothermal anomalies and zones of enhanced crustal permeability (Ferguson & Grasby, 2011;Grasby & Hutcheon, 2001). These systems offer vital information of a region's hydrological, climatic and tectonic histories (Gao et al., 2013;Grasby & Hutcheon, 2001;Lynne, 2012), providing important insight into the interaction between atmospheric and lithospheric processes at and near earth's surface. In recent decades, the desire to transition to carbon neutral electricity production has driven the exploration for geothermal energy resources as a form of renewable energy (Tester et al., 2006), and hydrothermal springs have been used to focus exploration activity. However, our understanding of hydrothermal springs remains incomplete, especially when considering the longevity and resilience of systems through major climatic and landscape changes (Skinner, 1997). In any energy system, the reliability of a resource is vital to the production of electricity and the lifespan of these geothermal

show abstract

“…c) Blocks adjacent to the structure (Table 3) in which the exhumation ages are related to periods of deformation or reactivation of the fault zone, because low-temperature thermochronology dates the cooling ages, which in shear zone contexts are widely related to timing of the fault slip (cf. van der Pluijm et al, 1994;Stockli et al, 2002;Wells et al, 2000;Echler and Farley, 2003;Colgan et al, 2008;Bidgoli et al, 2015;Curry et al, 2016;Oriolo et al, 2016b;Abbey and Niemi, 2018;Collett et al, 2019;Heineke et al, 2019;Amaya-Ferreira et al, 2020). Exhumation ages are determined using low-temperature thermochronology methods (surface conditions of the lithosphere at ~10-km depth, for a normal geothermal gradient), including thermochronometers such as apatite fission track (AFT) and zircon fission track (ZFT), which give closing temperatures between ~110-120 °C and ~230-240 °C, respectively, under conditions of constant cooling and relatively rapid exhumation (Zaun and Wagner, 1985;Hurford, 1986;Laslett et al, 1987;Vance, 1992, Ketcham et al, 1999;Bernet et al, 2002;Bernet et al, 2019).…”

Section: Radiometric Dating Of Geological Featuresmentioning

confidence: 99%

Geological-structural mapping and geocronology of shear zones: A methodological proposal

Ortega¹,

Isaza²,

Herrera³

et al. 2021

Bol.geol.

View full text Add to dashboard Cite

The deformation registered in rocks in the field can be characterized based on the structures preserved in outcrops, which can related be to wide discontinuity zones named faults and shear zones. The geological-structural mapping and the geochronology of these tectonic structures are a topic of great interest not only for tectonic modeling but also for reconstruction of the geological evolution of the national territory. The methodology suggest for the analysis of faults and shear zones is based on eight steps, including: 1) definition of the geological context in which the structure was developed; 2) photointerpretation, image geoprocessing, and geological-structural mapping of the structural and lithological characteristics of the faults and shear zones; 3) petrographic analysis of field-oriented samples; 4) quantification of strain orientation and geometry through 3D finite strain analyses and quantification of non-coaxiliaty of deformation through vorticity analyses; 5) SEM-TEM-EBSD microanalysis; 6) quantification of the P-T conditions of deformation through phase-equilibria modeling or conventional geothermobarometry; 7) dating of syn-kinematic minerals phases and mylonitic rocks through Ar-Ar analyses, in order to determine the reactivation and deformation ages of the structure, respectively, as well as the implementation of the U-Pb technique in syn-kinematic calcite crystals developed in the fault planes; and 8) dating of geological elements adjacent to the structure, such as syn-kinematic intrusive bodies associated with the deformation event using zircon U-Pb dating, rocks hydrothermally altered through Ar-Ar method, and zircon and apatite fission-tracks dating of the blocks adjacent to the faults for determining exhumation ages.

show abstract

Detachment faulting in a bivergent core complex constrained by fault gouge dating and low-temperature thermochronology

Cited by 18 publications

References 98 publications

Characteristics, genetic mechanism, and hydrocarbon accumulation of Cambrian gravity flow in the eastern Gucheng area, Tarim Basin, China

Characteristics, genetic mechanism, and hydrocarbon accumulation of Cambrian gravity flow in the eastern Gucheng area, Tarim Basin, China

Determining the Lifespan of Hydrothermal Systems Using Thermochronology and Thermal Modeling

Geological-structural mapping and geocronology of shear zones: A methodological proposal

Contact Info

Product

Resources

About