Copyright: © the author(s), publisher and licensee Technoscience Academy. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited International Journal of Scientific Research in Science and Technology Print ISSN: 2395-6011 | Online ISSN: 2395-602X (www.ijsrst.com) doi : https://doi.org/10.32628/IJSRST229367 314 Environmental Magnetism, Geochemical and Textural Characteristics of the Sediments of Beypore Estuary, Northern Kerala, India: Implication on Environmental Processes B.S. Praseetha *1,2 , V.I. Tiju 1 , T.N. Prakash 1,3 , G. Sreenivasulu 4 , R. Nagendra 5 1 Marine Geoscience Group, National Centre for Earth Science Studies, Thiruvananthapuram, Kerala, India 2 Department of Marine Geology and Geophysics, Cochin University of Science and Technology, Cochin, Kerala, India 3 National Institute of Advanced Studies, IISC Bangalore, Karnataka, India 4 Sri Venkateshwara University, Tirupati, Andhra Pradesh, India 5 Formerly, Department of Geology, Anna University, Chennai, Tamil Nadu, India *Corresponding author: praseethabs@gmail.com Article Info Volume 9, Issue 3 Page Number : 314-334 Publication Issue May-June-2022 Article History Accepted : 10 May 2022 Published : 30 May 2022 ABSTRACT The inter-relationship between the environmental magnetic parameters, geochemical and granulometric distribution are addressed in this paper to assess the environmental conditions employing the surficial sediments of Beypore Estuary, Kerala. The magnetic results elucidate the dominance of magnetic grain size in the lower estuary, magnetic concentration in the middle, and magnetic mineral in the upper estuary, respectively. The magnetic parameters confirm the presence of ferrimagnetic minerals such as magnetite in the estuary. The geochemical elements affinity attribute towards the lower estuary. Further, intense weathering in the lower estuary and moderate to weak weathering in the middle and upper estuary are observed which is reflected in the micro-texture features of quartz grains. The Beypore sediments are moderately polluted based on the pollution indices. The finding elucidates the combination of natural and anthropogenic activities, controlling the environmental conditions in the estuary. Keywords : Estuary, Environmental magnetism, Geochemistry, Sediment texture I. INTRODUCTION An estuary is a dynamic system that connects the river and the ocean. The sedimentary archives are preserved, and several more sediment proxies aid in defining the depositional environment. The estuary is divided into three sections: the marine or lower estuary (free connection to the open sea), the middle estuary (mixing of saline and freshwater), and the upper estuary (upper or fluvial estuary) [1]. They are the natural sinks for heavy metals and magnetic minerals from a variety of sources, including natural and anthropogenic activities. Magnetic particles in coastal sediments are frequently produced from terrestrial