The Early Cretaceous Tsagaangol formation sandstone provenance and paleoclimate

Authors

  • Dashpuntsag Nansalmaa School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, Mongolia
  • Luvsanchultem Jargal School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, Mongolia
  • Demberelsuren Batbold School of Geology and Mining, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia
  • Altangadas Enkhtuya School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, Mongolia
  • Enkhbayar Bolormaa School of Arts and Sciences, National University of Mongolia, Ulaanbaatar, Mongolia

Keywords:

Tsagaangol petrography, sandstone, fragments, weathering

Abstract

Early Cretaceous Tsagaangol formation refers to Zoolen terrain. This study attempts to make classification of the sandstones of the formation, define its sources and identify its alteration and paleoclimate condition. The sandstones of the formation are rich in mineral fragments, especially, quartz (comprising 70-75% of the entire content) and the composition is identified to be varying from subarcose to lithic arcose. As plotted on the source defining diagrams, they have been identified to be of continental block and mixed orogen and to get intensely altered or weathered under warm humid climate condition.

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References

Badarch, G., Gunningham, W.D.,Windley, B.F., 2002. Anew terrane subdivision for Mongolia: implications for the Phanerozoic crustal growth of Central Asia. Journal of Asian Earth Sciences 21, 87-110

Dickinson W.R, 1974, Plate tectonics and sedimentation. In: Dickinson (Ed), Tectonics and sedimentation: Society of Economic Paleontologists and Mineralogists Special Publication, 22, 1-27. Dickinson W.R, 1985, Interpreting provenance relations from detrital modes of sandstones.

Folk R, 1968, Sedimentary rocks, 170.

Suttner, L.J and Dutta,P.K, 1986. Alluvial sandstone composition and paleoclimate, I. Framework Mineralogy., Jour. Sed. Pet., v.56(3)., pp.329-345.

Lkhundev. Sh, Delgerekhtumen. B, Uguudei. D, Lkhagvadorj. D, Zayabayar.Ts (2016), Report on geological mapping of Bayandalai area, scale № 7940, Ulaanbaatar, pp. 238-245

Nansalmaa.D, Jargal.L, Badamgarav.J, (2009), Petrology of Tsagaangol formation sandstone /Geodynamics and metallogenic issues of Mongolia/ №19, Ulaanbaatar, pp. 160-165

Shuvalov. I, 1982, Mesozoic marine basins

Nesbitt, H.W., Young, G.M., McLennan, S.M., Keays, R.R., 1996. Effects of chemical

weathering and sorting on the petrogenesis of siliciclastic sediments, with implications

for provenance studies. Journal of Geology 104, 525–542.

Rieu, R., Allen, P.A., Plotze, M., Pettke, T., 2007. Climatic cycles during a Neoproterozoic ”snowball” glacial epoch. Geology 35, 299-302

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Published

2023-02-23

How to Cite

Nansalmaa, Dashpuntsag, Luvsanchultem Jargal, Demberelsuren Batbold, Altangadas Enkhtuya, and Enkhbayar Bolormaa. 2023. “The Early Cretaceous Tsagaangol Formation Sandstone Provenance and Paleoclimate”. Geological Issues 16 (1):109-15. https://journal.num.edu.mn/geology/article/view/2264.

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Section

Судалгааны өгүүллэг