Fault structure and slip localization in carbonate-bearing normal faults: An example from the Northern Apennines of Italy

Collettini, Cristiano; Carpenter, B. M.; Viti, Cecilia; Cruciani, Francesco; Mollo, Silvio; Tesei, Telemaco; Trippetta, Fabio; Valoroso, Luisa; Chiaraluce, L.

doi:10.1016/j.jsg.2014.07.017

Cited by 64 publications

(52 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Normal faults in the Apennines are known to host some of the largest earthquakes [e.g., Basili et al ., ; Chiaraluce , ]. The MMF, exhumed from ~2 km depth, has accommodated approximately 650 m of slip [ Collettini et al ., ] and cuts across lithologies similar to those that hosted the Gubbio 1984, Umbria‐Marche 1997, and L'Aquila 2009 earthquake sequences.…”

Section: Geologic Setting and Fault Descriptionmentioning

confidence: 84%

“…At the outcrop scale, the fault is composed of parallel, distinct slip surfaces extending for a total width of ~50 m (Figure ), all showing kinematic indicators of fault slip that are consistent with the current, extensional tectonic setting. Fault structure and slip surface phenomena are consistent with observations of other normal faults cutting carbonate lithologies [ Stewart and Hancock , ; Smith et al ., ; Bullock et al ., ] and are more fully explored in a separate manuscript [ Collettini et al ., ]. Here we focus on an exceptionally well‐exposed fault exposure (Figure , top) that separates cataclastic fault rocks derived from the Calcare Massiccio massive limestones (Lower Jurassic) in the footwall and cataclasite, formed mainly from marly limestone of the Bugarone formation (Upper Jurassic‐Lower cretaceous) in the hanging wall (Figure , bottom).…”

Section: Geologic Setting and Fault Descriptionmentioning

confidence: 99%

See 1 more Smart Citation

Frictional heterogeneities on carbonate‐bearing normal faults: Insights from the Monte Maggio Fault, Italy

et al. 2014

Self Cite

View full text Add to dashboard Cite

Observations of heterogeneous and complex fault slip are often attributed to the complexity of fault structure and/or spatial heterogeneity of fault frictional behavior. Such complex slip patterns have been observed for earthquakes on normal faults throughout central Italy, where many of the M w 6 to 7 earthquakes in the Apennines nucleate at depths where the lithology is dominated by carbonate rocks. To explore the relationship between fault structure and heterogeneous frictional properties, we studied the exhumed Monte Maggio Fault, located in the northern Apennines. We collected intact specimens of the fault zone, including the principal slip surface and hanging wall cataclasite, and performed experiments at a normal stress of 10 MPa under saturated conditions. Experiments designed to reactivate slip between the cemented principal slip surface and cataclasite show a 3 MPa stress drop as the fault surface fails, then velocity-neutral frictional behavior and significant frictional healing. Overall, our results suggest that (1) earthquakes may readily nucleate in areas of the fault where the slip surface separates massive limestone and are likely to propagate in areas where fault gouge is in contact with the slip surface; (2) postseismic slip is more likely to occur in areas of the fault where gouge is present; and (3) high rates of frictional healing and low creep relaxation observed between solid fault surfaces could lead to significant aftershocks in areas of low stress drop.

show abstract

Section: Geologic Setting and Fault Descriptionmentioning

confidence: 84%

Section: Geologic Setting and Fault Descriptionmentioning

confidence: 99%

Frictional heterogeneities on carbonate‐bearing normal faults: Insights from the Monte Maggio Fault, Italy

et al. 2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…Kanamori and Stewart, 1978;Lay and Kanamori, 1981) and geology (e.g. Cloos, 1992). However, we considered some complementary aspects, regarding the spatial distribution of the complexities along the fault (from geological reconstructions) and the characterization of the frictional properties of the fault rocks (derived from friction experiments).…”

Section: Integrated Fault Model and Comparison With Seismicity In Thementioning

confidence: 99%

Heterogeneous strength and fault zone complexity of carbonate-bearing thrusts with possible implications for seismicity

Tesei

Collettini

Barchi

et al. 2014

Earth and Planetary Science Letters

100

View full text Add to dashboard Cite

“…Large faults, which form the boundaries of oil and gas fields, can generally control hydrocarbon accumulation (Agosta et al 2012;Allan 1989;Balsamo et al 2010;Bouvier et al 1989;Braathen et al 2009;Brogi and Novellino 2015;Choi et al 2015;Collettini et al 2014;Fisher and Jolley 2007). However, small faults generally separate oil and gas, resulting in an increase in well spacing that poses challenges in oil and gas exploration.…”

Section: Introductionmentioning

confidence: 99%

“…However, small faults generally separate oil and gas, resulting in an increase in well spacing that poses challenges in oil and gas exploration. Thereby, studies of fault sealing have become a very important focus for oil and gas exploration and development (Ciftci et al 2013;Collettini et al 2014;Davatzes and Aydin 2005;Fachri et al 2013a, b). Studies of fault sealing have evolved from trap theory, which is used to identify hydrocarbon sealing mechanism(s) and physical parameters of faults (Hubbert 1953;Smith 1980).…”

Section: Introductionmentioning

confidence: 99%

Improvements to the fuzzy mathematics comprehensive quantitative method for evaluating fault sealing

Da-wei

Yang

et al. 2017

Pet. Sci.

View full text Add to dashboard Cite

Fuzzy mathematics is an important means to quantitatively evaluate the properties of fault sealing in petroleum reservoirs. To accurately study fault sealing, the comprehensive quantitative evaluation method of fuzzy mathematics is improved based on a previous study. First, the single-factor membership degree is determined using the dynamic clustering method, then a single-factor evaluation matrix is constructed using a continuous grading function, and finally, the probability distribution of the evaluation grade in a fuzzy evaluation matrix is analyzed. In this study, taking the F1 fault located in the northeastern Chepaizi Bulge as an example, the sealing properties of faults in different strata are quantitatively evaluated using both an improved and an un-improved comprehensive fuzzy mathematics quantitative evaluation method. Based on current oil and gas distribution, it is found that our evaluation results before and after improvement are significantly different. For faults in ''best'' and ''poorest'' intervals, our evaluation results are consistent with oil and gas distribution. However, for the faults in ''good'' or ''poor'' intervals, our evaluation is not completely consistent with oil and gas distribution. The improved evaluation results reflect the overall and local sealing properties of target zones and embody the nonuniformity of fault sealing, indicating the improved method is more suitable for evaluating fault sealing under complicated conditions

show abstract

Fault structure and slip localization in carbonate-bearing normal faults: An example from the Northern Apennines of Italy

Cited by 64 publications

References 68 publications

Frictional heterogeneities on carbonate‐bearing normal faults: Insights from the Monte Maggio Fault, Italy

Frictional heterogeneities on carbonate‐bearing normal faults: Insights from the Monte Maggio Fault, Italy

Heterogeneous strength and fault zone complexity of carbonate-bearing thrusts with possible implications for seismicity

Improvements to the fuzzy mathematics comprehensive quantitative method for evaluating fault sealing

Contact Info

Product

Resources

About