Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea

Chen Hao; Sun Wei-min; Zhang Hong-cai

doi:10.1007/BF02850370

Your Location：

Home >

Browse articles >

Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea

OriginalPaper | Updated：2023-05-16

- Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea
- Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea
- 海洋湖沼学报（英文） 1996年14卷第2期页码：135-140
- Affiliations：
  
  1. Dept of Geology and Geophysics University of Edinburgh
  2. Institute of Oceanology
- Author bio：
- Funds：
  
  Contribution NO. 2859 from the Institute of Oceanology, Chinese Academy of Sciences.;This project was supported by National Natural Science Foundation of China (No. 49070189) and the British;Council (ALCS SCEHEME-PEK/992/180).
- DOI：10.1007/BF02850370
  中图分类号：
- 网络首发：2013-01-31，
  
  纸质出版：1996
- Accepted：
Scan QR Code
Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea[J]. 海洋湖沼学报（英文）, 1996,14(2):135-140.

Hao, C., Wei-min, S. & Hong-cai, Z. Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea., Chin. J. Ocean. Limnol. 14, 135–140 (1996). https://doi.org/10.1007/BF02850370
Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea[J]. 海洋湖沼学报（英文）, 1996,14(2):135-140. DOI： 10.1007/BF02850370.

Hao, C., Wei-min, S. & Hong-cai, Z. Anisotropy of magnetic susceptibility and identification of tilted sediment cores from the Bohai Sea., Chin. J. Ocean. Limnol. 14, 135–140 (1996). https://doi.org/10.1007/BF02850370 DOI：

摘要

Abstract

Anisotropy of magnetic susceptibility (AMS) is a well-developed technique increasingly used in petro-fabric determination. Its application to two Mackereth cores JX91-2A and JX91-2B

taken from the same site in the central Bohai Sea

revealed 3D magnetic fabrics of the sediments as expressed with susceptibility ellipsoids. The flat seafloor and the relatively quiet depositional environment in the semi-isolated Bohai Sea should result in a primary fabric with horizontally oblate susceptibility ellipsoids. Moreover

the increasing downcore total anisotropy comprising mainly of magnetic foliation resulting from sediment compaction should also lead to flat ellipsoids. Therefore

the off-pole mean directions of minimum axes of susceptibility ellipsoids on stereonets must indicate that the two cores are tilted relative to the flat seafloor. Use of Fisher statistics showed the tilt angles to be 14° for JX91-2A and 23° for JX91-2B from which the true depths of the cores were decided accordingly.

关键词

Keywords

references

Arason, P., Levi, S., 1990. Models of indination shallowing during sediment compaction.J. Geophys. Res. 95(B4): 4481–4499.

Blunk, I., 1991. Magnetic fabric studies of sediments from Lac du Bouchet. Documents du CERLAT.memoire 2: 271–311.

Collinson, D. W., 1983. Methods in Rock Magnetism and Palaeomagnetism. Techniques and Instrumentation. Chapman & Hall. London, pp. 15–57.

Deamer, G. A., Kodama, K. P., 1990. Compaction-induced inclination shallowing in synthetic and natural clay-rich sediments.J. Geophys. Res. 95(B4): 4511–4529.

Fisher, R. A., 1953. Dispersion on a sphere. Proc. R. Soc.,A217: 295–305.

Frideman, G. M., Sanders, J. E., 1978. Principles of Sedimentology. John Willy & Sons, USA, p. 64.

Hrouda, F., 1982. Magnetic anisotropy of rocks and its application in geology and geophysics.Geophys. Surv. 5 (1): 37–82.

IOAS (Institute of Oceanology, Academia Sinica), 1985. Geology of the Bohai Sea. Science Press, Beijing pp. 1–12. (in Chinese)

Khan, M. A., 1962. The anisotropy of magnetic susceptibility of some igneous and metamorphic rocks.J. Geophys. Res. 67: 2873–2885.

Levi, S., Banerjee, S., 1990. On the origin of inclination shallowing in redeposited sediments.J. Geophys. Res. 95(B4): 4383–4389.

Mackereth, F. J. H., 1958. A portable core sampler for lake deposits.Limnol. Oceanogr. 3: 181–191.

Nagata, T., 1961. Rock Magnetism. Maruzen, Tokyo, pp. 126–146.

Noel, M., 1986. The palaeomagnetism and magnetic fabric of sediments from Peak Cavern, Derbyshire.Geophys. J. R. Astr. Soc. 84: 445–454.

Owens, W. H., Bamford, D., 1976. Magnetic, seismic, and other anisotropic properties of rock fabrics.Phil. Trans. R. Soc. Lond. A283: 55–68.

Rees, A. I., 1961. The effect of water currents on the magnetic remanence and anisotropy of susoeptibility of some sediments.Geophys. J. R. Astr. Soc. 6: 235–251.

Rees, A. I., 1966. the effect of depositional slopes on the anisotropy of magnetic susceptibility of laboratory deposited sands.J. Geol. 74: 856–867.

Rees, A. I., Woodall, W. A., 1975. The magnetic fabric of some laboratory deposited sediments.Earth Planet. Sci. Letters. 25: 121–130.

Taring, D. H., Hrouda, F., 1993. The Magnetic Anisotropy of Rocks. Chapman & Hall, London, pp. 169–189.

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

Water quality analysis and source apportionment in estuaries along the coast of the Bohai Sea, North China

Spatial correlations in time and frequency domains between chlorophyll-a concentration and environmental factors in the Bohai Sea

Discovery and characterization of a new hydrothermal field at 2°‍N on the slow-spreading Carlsberg Ridge

The green tide in Yingkou, China in summer 2021 was caused by a subtropical alga—Ulva meridionalis (Ulvophyceae, Chlorophyta)

Distribution and phenogenetic diversity of Synechococcus in the Bohai Sea, China