Magnetic Properties of some late Paleozoic to Tertiary Sedimentary Rocks of Tansen Area, Lesser Himalaya, Nepal
スポンサーリンク
概要
- 論文の詳細を見る
Magnetic properties of a total number of 117 samples collected with an aim of preliminary paleomagnetic study from 26 sites in the Tansen area were investigated. Measurements of natural remanent magnetization (NRM) showed that only 11 sites (61 samples), which are represented by olive green sandstones and siltstones and redbeds (red-colored shale, sandstone and iron-rich rocks) possess magnetizations strong enough to be analyzed for stability of the remanence by alternating field (AF) and thermal (TH) demagnetization techniques. Demagnetization behavior, isothermal remanent magnetization (IRM) characteristics, X-ray diffraction patterns and variation of saturation magnetization with temperature have been studied. Chemical changes of siderite to magnetite during laboratory heating and instability of siderite-containing specimens was established. Analysis of magnetic directions obtained in the present study when combined with the paleomagnetic results on Aulis volcanics from the Tansen Group leads to recognize characteristic (probably primary), and secondary magnetizations of various ages: recent, Early Miocene. Late Eocene, Early Eocene and older.
- 北海道大学 = Hokkaido Universityの論文
著者
-
Gautam Pitambar
北海道大学理学部地質学鉱物学教室
-
Gautam P
Hokkaido Univ. Sapporo Jpn
-
Gautam Pitambar
Coe For Neo-science Of Natural History Graduate School Of Science Hokkaido University
-
Gautam Pitambar
Hokkaido Univ.
-
Gautam Pitambar
Division Of Earth And Planetary Sciences Graduate School Of Science Hokkaido University
関連論文
- Magnetism and granulometry of Pleistocene sediments of Dhapasi section, Kathmandu (Nepal) : implications for depositional age and paleoenvironment
- Integration of magnetism and heavy metal chemistry of soils to quantify the environmental pollution in Kathmandu, Nepal
- Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal
- 西南北海道洞爺湖東方の鮮新-更新統について : 堆積相・花粉層序・古地磁気層序
- Recent Advances in Research on Terrestrial and Marine sequences from the mid-Cretaceous Oceanic Anoxic Events (OAEs).
- Preface
- Environmental magnetic approach towards the quantification of pollution in Kathmandu urban area, Nepal
- Two Metamorphic Events of the Nepal Himalayas Prior and Posterior to India-Eurasia Collision
- Magnetic-polarity stratigraphy of Siwalik Group sediments of Tinau Khola section in west central Nepal, revisited
- Magnetic Properties of some late Paleozoic to Tertiary Sedimentary Rocks of Tansen Area, Lesser Himalaya, Nepal
- On the Nature of Remanence in the 1985 Andesitic Pumice with Self-Reversed Magnetization from Nevado del Ruiz, Colombia
- 513 Remanent magnetism and fission-track ages of some rocks from the Ampipal massif, the Lasser Himalaya, Nepal
- Paleomagnetism of the Northwestern Part of the Mahabharat Synclinorium, Lesser Himalaya, Nepal
- A Paleomagnetic Reconnaissance of some late Precambrian to Early Paleozoic Rocks of Tansen Area, Lesser Himalaya, Nepal
- Magnetic minerals and magnetic properties of the Siwalik Group sediments of the Karnali river section in Nepal
- Mapping of subsurface karst structure with gamma ray and electrical resistivity profiles : a case study from Pokhara valley, central Nepal
- Depositional chronology and fabric of Siwalik group sediments in Central Nepal from magnetostratigraphy and magnetic anisotropy
- Magnetic polarity stratigraphy of Siwalik Group sediments of Karnali River section in western Nepal
- Magnetostratigraphic dating of the prime-time sedimentary record of Himalayan tectonics and climate: new age constraints (13-10 Ma) from the Siwaliks of the Tinau Khola north section, Nepal
- Reflection of cross-disciplinary research at Creative Research Institution (Hokkaido University) in the Web of Science database: appraisal and visualization using bibliometry