Two mangrove sediment cores representing middle region of the Panchagangavali Estuary (one each at Chakra Estuary and Halady Estuary) were analysed for sedimentological and geochemical parameters. The data revealed prevalence of uniform violent hydrodynamic energy condition in the Chakra Estuary (core G3), whereas, varying and relatively calm hydrodynamic energy conditions in the Halady Estuary (core G4). All the studied metals (Al, Fe, Mn, Ni, Zn, Cu and Cr) were of mainly lithogenic origin in both the estuaries, except Co which may be derived from a different source. The Enrichment Factor (EF) indicated deficiency to minimal enrichment of Fe, Mn, Ni, Zn, Cu and Co whereas, Cr showed a moderate enrichment in sediments. However, metals Fe, Ni, Zn, Cr and Cu were relatively enriched in the top section 3 of Halady Estuary indicating their enhanced release in recent years possibly due to increased human activities and high rain fall in the catchment area.

分析了代表Panchagangavali河口中部区域的两个红树林沉积物核心（每个分别位于查克拉河口和Halady河口），以获取沉积学和地球化学参数。数据显示，脉轮河口（G3核心）普遍存在均匀的暴力水动力能条件，而哈拉迪河口（G4核心）则存在变化且相对平静的水动力能条件。所有研究的金属（Al，Fe，Mn，Ni，Zn，Cu和Cr）在两个河口中均主要是成岩成因，但Co可能来自不同的来源。富集因子（EF）表示铁，锰，镍，锌，铜和钴的最小富集不足，而铬显示出沉积物中的中等富集。但是，金属Fe，Ni，Zn，