GEOMORPHIC CONSTRAINTS ON LATE PLEISTOCENE – HOLOCENE SLIP RATES ALONG THE CENTRAL PANAMINT VALLEY FAULT, CA

2016 ◽  
Author(s):  
Na Hyung Choi ◽  
◽  
Eric Kirby ◽  
Eric McDonald ◽  
John Gosse ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Slip Rates

scholarly journals Early Holocene and Late Pleistocene slip rates of the southern Dead Sea Fault determined from10Be cosmogenic dating of offset alluvial deposits

2010 ◽  
Vol 115 (B11) ◽  
Author(s):  
Maryline Le Béon ◽  
Yann Klinger ◽  
Mahmoud Al-Qaryouti ◽  
Anne-Sophie Mériaux ◽  
Robert C. Finkel ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Dead Sea ◽  
Early Holocene ◽  
Alluvial Deposits ◽  
Slip Rates ◽  
Cosmogenic Dating

scholarly journals Nonrigid Bookshelf Kinematics of Northeastern Tibet: Constrains from Fault Slip Rates around the Qinghai Lake and Chaka-Gonghe Basins

Lithosphere ◽  
2021 ◽  
Vol 2021 (Special 2) ◽  
Author(s):  
Chen Gan ◽  
Ai Ming ◽  
Zheng Wenjun ◽  
Bi Haiyun ◽  
Liu Jinrui ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Slip Rate ◽  
Qinghai Lake ◽  
Deformation Model ◽  
Stream Channels ◽  
Slip Rates ◽  
Regional Deformation ◽  
Northeastern Tibet ◽  
Uplift Rates ◽  
Major Strike

Abstract The Elashan fault (ELSF) and Qinghainanshan fault (QHNF), two major faults developed around the Qinghai Lake and Chaka-Gonghe basins, are of great importance for investigating the deformation model of the internal northeastern Tibetan Plateau. However, their late Pleistocene slip rates remain poorly constrained. In this study, we combine high-resolution topography acquired from unmanned aerial vehicles (UAV) and geomorphological dating to calculate the slip rates of the two faults. We visited the central ELSF and western QHNF and measured displaced terraces and stream channels. We collected 10Be samples on the surface of terraces to constrain the abandonment ages. The dextral slip rate of the central segment of the Elashan fault is estimated to be 2.6±1.2 mm/yr. The uplift rates since the late Pleistocene of the Elashan and Qinghainanshan faults are 0.4±0.04 mm/yr and 0.2±0.03 mm/yr, respectively. Comparing the geological rates with the newly published global positioning system (GPS) rates, we find that the slip rates of the major strike-slip faults around the Qinghai Lake and Chaka-Gonghe basins are approximately consistent from the late Pleistocene to the present day. The overall NE shortening rates by summing up the geological slip rates on major faults between the East Kunlun and Haiyuan faults are ~3.4 mm/yr, smaller than the geodetic shortening rates (~4.9 to 6.4 mm/yr), indicating that distributed deformation plays an important role in accommodating the regional deformation. By analyzing the geometrical and kinematic characteristics of the major faults surrounding the basins, we suggest that the kinematic deformation of the internal northeastern Tibet is a nonrigid bookshelf model that consists of counterclockwise rotation (~0.8° Myr-1) and distributed thrusting.

Geometry and late Pleistocene slip rates of the Liangdang-Jiangluo fault in the western Qinling mountains, NW China

2016 ◽  
Vol 687 ◽  
pp. 1-13 ◽  
Author(s):  
Zheng Wen-jun ◽  
Liu Xing-wang ◽  
Yu Jing-xing ◽  
Yuan Dao-yang ◽  
Zhang Pei-zhen ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Qinling Mountains ◽  
Slip Rates ◽  
Nw China ◽  
Western Qinling

Insights into Wasatch fault vertical slip rates using the age of sediments in Timpanogos Cave, Utah

2009 ◽  
Vol 72 (2) ◽  
pp. 275-283 ◽  
Author(s):  
Alan L. Mayo ◽  
Jiri Bruthans ◽  
David Tingey ◽  
Jaroslav Kadlec ◽  
Steve Nelson
Keyword(s):  
Late Pleistocene ◽  
Slip Rate ◽  
Fault Movement ◽  
Slip Rates ◽  
Exhumation Rate ◽  
Slip Deficit ◽  
Cave Sediments ◽  
Depositional Age ◽  
Wasatch Fault

AbstractTimpanogos Cave, located near the Wasatch fault, is about 357 m above the American Fork River. Fluvial cave sediments and an interbedded carbonate flowstone yield a paleomagnetic and U–Th depositional age of 350 to 780 ka. Fault vertical slip rates, inferred from calculated river downcutting rates, range between 1.02 and 0.46 mm yr− 1. These slip rates are in the range of the 0–12 Ma Wasatch Range exhumation rate (∼ 0.5–0.7 mm yr− 1), suggesting that the long-term vertical slip rate remained stable through mid-Pleistocene time. However, the late Pleistocene (0–250 ka) decelerated slip rate (∼ 0.2–0.3 mm yr− 1) and the accelerated Holocene slip rate (∼ 1.2 mm yr− 1) are consistent with episodic fault activity. Assuming that the late Pleistocene vertical slip rate represents an episodic slowing of fault movement and the long-term (0–12 Ma) average vertical slip rate, including the late Pleistocene and Holocene, should be ∼ 0.6 mm yr− 1, there is a net late Pleistocene vertical slip deficit of ∼ 50–75 m. The Holocene and late Pleistocene slip rates may be typical for episodes of accelerated and slowed fault movement, respectively. The calculated late Pleistocene slip deficit may mean that the current accelerated Wasatch fault slip rate will extend well into the future.

Quaternary slip rates on the White Mountains fault zone, eastern California: Implications for comparing geologic to geodetic slip rates across the Walker Lane

2020 ◽  
Vol 133 (1-2) ◽  
pp. 307-324
Author(s):  
Zachery M. Lifton ◽  
Jeffrey Lee ◽  
Kurt L. Frankel ◽  
Andrew V. Newman ◽  
Jeffrey M. Schroeder
Keyword(s):  
Fault Zone ◽  
Late Pleistocene ◽  
Slip Rate ◽  
North American Plate ◽  
Fault System ◽  
White Mountains ◽  
Slip Rates ◽  
Walker Lane ◽  
Lateral Displacements ◽  
Exposure Ages

Abstract The White Mountains fault zone in eastern California is a major fault system that accommodates right-lateral shear across the southern Walker Lane. We combined field geomorphic mapping and interpretation of high-resolution airborne light detection and ranging (LiDAR) digital elevation models with 10Be cosmogenic nuclide exposure ages to calculate new late Pleistocene and Holocene right-lateral slip rates on the White Mountains fault zone. Alluvial fans were found to have ages of 46.6 + 11.0/–10.0 ka and 7.3 + 4.2/–4.5 ka, with right-lateral displacements of 65 ± 13 m and 14 ± 5 m, respectively, yielding a minimum average slip rate of 1.4 ± 0.3 mm/yr. These new slip rates help to resolve the kinematics of fault slip across this part of the complex Pacific–North American plate boundary. Our results suggest that late Pleistocene slip rates on the White Mountains fault zone were significantly faster than previously reported. These results also help to reconcile a portion of the observed discrepancy between modern geodetic strain rates and known late Pleistocene slip rates in the southern Walker Lane. The total middle to late Pleistocene slip rate from the southern Walker Lane near 37.5°N was 7.9 + 1.3/–0.6 mm/yr, ∼75% of the observed modern geodetic rate.

scholarly journals Late Quaternary slip rates for faults of the central Walker Lane (Nevada, USA): Spatiotemporal strain release in a strike-slip fault system

Geosphere ◽  
2019 ◽  
Vol 15 (5) ◽  
pp. 1460-1478 ◽  
Author(s):  
Stephen J. Angster ◽  
Steven G. Wesnousky ◽  
Paula M. Figueiredo ◽  
Lewis A. Owen ◽  
Sarah J. Hammer
Keyword(s):  
Late Pleistocene ◽  
Strike Slip ◽  
Strike Slip Fault ◽  
Luminescence Dating ◽  
Slip Distribution ◽  
Fault System ◽  
Slip Rates ◽  
Walker Lane ◽  
Fault Systems ◽  
Late Pleistocene To Holocene

Abstract The Walker Lane is a broad shear zone that accommodates a significant portion of North American–Pacific plate relative transform motion through a complex of fault systems and block rotations. Analysis of digital elevation models, constructed from both lidar data and structure-from-motion modeling of unmanned aerial vehicle photography, in conjunction with 10Be and 36Cl cosmogenic and optically stimulated luminescence dating define new Late Pleistocene to Holocene minimum strike-slip rates for the Benton Springs (1.5 ± 0.2 mm/yr), Petrified Springs (0.7 ± 0.1 mm/yr), Gumdrop Hills (0.9 +0.3/−0.2 mm/yr), and Indian Head (0.8 ± 0.1 mm/yr) faults of the central Walker Lane (Nevada, USA). Regional mapping of the fault traces within Quaternary deposits further show that the Indian Head and southern Benton Springs faults have had multiple Holocene ruptures, with inferred coseismic displacements of ∼3 m, while absence of displaced Holocene deposits along the Agai Pah, Gumdrop Hills, northern Benton Springs, and Petrified Springs faults suggest they have not. Combining these observations and comparing them with geodetic estimates of deformation across the central Walker Lane, indicates that at least one-third of the ∼8 mm/yr geodetic deformation budget has been focused across strike-slip faults, accommodated by only two of the five faults discussed here, during the Holocene, and possibly half from all the strike-slip faults during the Late Pleistocene. These results indicate secular variations of slip distribution and irregular recurrence intervals amongst the system of strike-slip faults. This makes the geodetic assessment of fault slip rates and return times of earthquakes on closely spaced strike-slip fault systems challenging. Moreover, it highlights the importance of understanding temporal variations of slip distribution within fault systems when comparing geologic and geodetic rates. Finally, the study provides examples of the importance and value in using observations of soil development in assessing the veracity of surface exposure ages determined with terrestrial cosmogenic nuclide analysis.

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