Dating fault gouge, geoscienceworld

Include any more information that will help us locate the issue and fix it faster for you. American Chemical Society, Division of Geochemistry. However, only one of our samples shows dates according to Uysal et al. The intraplate extension that occurred at this meanZ Ma obtained from the! Reply to the of the Permian System of eastern Australia.

If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate. It should trending normal faults in the Newcastle area and south of be pointed out that an age of Ma was obtained from the the study area. Internal structures and high-velocity frictional properties of a bedding-parallel carbonate fault at Xiaojiaqiao outcrop activated by the Wenchuan earthquake.

Dating fault gouge

Analytical methods trometer using a Faraday cup. The data suggest that the most reliable isotopic at Burwood Beach. The extrapolated diagenetic age is the mean integrated age of the time interval over which illite grew. More from Earthquake Science.

Dating fault gouge

Despite this debate, there has been no study on the kinematics and absolute age of the thrusting. Motional effects in the trapped-hole center in smoky quartz. If this thermal event is followed by subsequent uplift and cooling it would affect illite of the host rock and gouge without a reactivated displacement along the thrust. The fault fa was the major fault and its activity influenced the other faults.

  • Dating metamorphism of illite in the Precambrian Belt Series.
  • Gray to black, clayey foliated gouge samples were taken at three different locations.
  • The report on seismic safety evaluation of the Fourth Bridge engineering sites of Qiantang River, China.

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  2. In some procedure similar to that described by Bonhomme et al.
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  4. The ages of all size fractions are quite homogeneous indicating that no major contamination is present in the observed age pattern of the different size fractions.
  5. Characteristics of seismic activity before several large Sumatra, Indonesia, earthquakes.

Geological setting within and outside the damage zone. More details Article metrics. Slow-slip events in semi-brittle serpentinite fault zones Slow-slip events in semi-brittle serpentinite fault zones. This result requires the western North America stress regime to have changed from contraction to extension in only a few million years during the Eocene.

The strongly preferred orientation suggests that the gouge minerals are of synkinematic origin. The petrographic results are similar to clay gouges within the Sydney basin, Australia investigated by Zwingmann et al. Springer- Verlag, Heidelberg-New York. Previous Figure Next Figure.

K-Ar Dating of Fault Gouges from the Red River Fault Zone of Vietnam

Dating fault gouges

That fault movements made the weathered bedrock of hanging wall slide down, and covered by Quaternary loose deposit. Foliated gouge zones, comminution and dilational breccias are developed along both fault surfaces. Illite in fault gouge is formed faults. Samples were collected from the gouge zone ca. Host rock samples were collected to determine Nobbys and Victoria Tunnel Coals of the Lambton the timing of diagenesis and to ascertain whether resetting Formation, Newcastle Coal Measures.

The dating of shallow faults in the Earth s crust

Dating fault gouge

The ghost-like outlines of shards negligible atmospheric Ar contamination and reliable can be observed in some specimens. For example, the thermal event at ca. This age may mean not only the production age, but also the age of the first fault movement along the fault plane. The samples remained on the vacuum manifold until all traces of liquid glycerol was gone.

Dating fault gouge
Dating fault gouge

Note slightly irregular outline of crystallites. Enter your email address below and we will send you your username. Help us improve our products. You're using an out-of-date version of Internet Explorer. Rights and permissions Reprints and Permissions.

Fault gouge dating in the Southern Appalachians USA

Acknowledgements Clauer, N. Characteristics of clay minerals in gouges of the Dongrae fault, Southeastern Korea, and implications for fault activity. Yang Zhuen, Professor Li Huhou for helpful suggestions.

Dating fault gouge

Occurrence and textures of the fault gouge zone in the m drill core penetrating throughout the Nojima fault zone. Further details to sample handling prior to Ar and K analysis are listed in the appendix. They have a damage zone in which antithetic, using Cs for ionisation suppression. Samples were prepared by placing one drop of clay solution on a micro carbon grid film and drying under air. Please review our Terms and Conditions of Use and check box below to share full-text version of article.

Detrital clay particles nation, closed system behaviour, excess Ar are discussed in are normally volumetrically much greater than neoformed detail by Hamilton et al. Thank you for submitting a report! Illite polytype quantification using Wildfire calculated X-ray diffraction patterns. We'll do our best to fix them.

Because of the different dating accuracy and age range, it is ineligible to compare the data directly. They are Robinson for the dating of clay minerals in hosted by Late Permian siltstones, tuffs Nobbys Tuff and sandstones. Furthermore, the improvement of measurement accuracy, dating material and geological application are urgently expected.

In most detrital muscovite Fig. Sequence age based on Roberts et al. On the structural evolution of the Macquarie Syncline, romantic pictures russian dating sites rifting of the eastern margin of the Australian continent.

Fault-gouge dating in the Southern Alps New Zealand

Dating fault gouges
The dating of shallow faults in the Earth s crust

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Details Include any more information that will help us locate the issue and fix it faster for you. The true cause for this inverse age trend is activity that occurred prior to the break-up of Gondwana. The age of illite Kralik, M. Copy and paste the desired citation format or use the link below to download a file formatted for EndNote. Samples were stored prior to loading into the Ar purification line in a desiccator.

Gondwana during the Early Cretaceous. Geological map of the northeastern Okcheon belt. Tectonic implications related volcanic event brought about the dispersal of continental fragments of eastern Australian Gondwana.

Read and print from thousands of top scholarly journals. University of Newcastle unpubl. This study reports Bryan, S. Password Changed Successfully Your password has been changed. How was the reading experience on this article?

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