The present paper reports an important amount of Ti-V-Ga and REE enrichments in the hitherto-unreported eighteen bodies of ferruginous and aluminous laterite capping over the Dhandraul Formation of the Vindhyan Supergroup, Eastern India. It is brown to deep reddish-brown, limonitic, massive, and having a pisolitic form which is mainly rounded to subrounded and filled up of clay, bauxite, limonite, hematite, goethite, and surface encrustation of ferruginous material. Laterites are chiefly composed of ferruginous minerals like hematite, magnetite along with secondary jaspery material and limonite, goethite, in association with silicates and clay minerals. The analyzed samples show high values of Ti, V, Ga, and LREE like La, Ce, Pr, Nd, and Eu along with some significant values of Sm, Gd, Dy, and Yb. TiO₂ value is ranging from 0.72 to 18.84 % with an average of 9.77 wt. % which is twenty-two times higher than the crustal abundance. Values of vanadium vary from 48 to 1163 ppm with an average of 593 ppm, and gallium varies from 9 to 90 ppm with an average of 47 ppm, and these values are three to five times higher than the crustal abundance. The “REE is varying from 208.81 to 899.31 ppm with an average of 484.49 ppm which is three times higher than the crustal abundance. The other significant trace elements identified are in ppm: Co (5–135), Cr (76–970), Cu (5–17), Ni (7–48), Pb (6–143), and Zn (14–231 ppm). This finding has got an enormous impact on the future Ti-V-Ga and REE exploration in the Vindhyan Supergroup in the state of Bihar.

本论文报告了印度东部 Vindhyan 超群的 Dhandraul 组上空迄今未报道的 18 个铁质和铝质红土体中的大量 Ti-V-Ga 和 REE 富集。棕色至深红棕色，褐铁矿，块状，呈菱形，主要为圆形至近圆形，并充满粘土、铝土矿、褐铁矿、赤铁矿、针铁矿和铁质材料的表面结壳。红土主要由赤铁矿、磁铁矿等含铁矿物以及次生碧玉材料和褐铁矿、针铁矿以及硅酸盐和粘土矿物组成。分析的样品显示出高值的 Ti、V、Ga 和 LREE，如 La、Ce、Pr、Nd 和 Eu，以及一些显着的 Sm、Gd、Dy 和 Yb。二氧化钛₂值范围从 0.72 到 18.84 %，平均为 9.77 重量％。%，比地壳丰度高 22 倍。钒的值从 48 到 1163 ppm 不等，平均为 593 ppm，镓从 9 到 90 ppm，平均为 47 ppm，这些值比地壳丰度高三到五倍。“稀土元素从 208.81 到 899.31 ppm 不等，平均为 484.49 ppm，是地壳丰度的三倍。确定的其他重要微量元素以 ppm 为单位：Co (5–135)、Cr (76–970)、Cu (5–17)、Ni (7–48)、Pb (6–143) 和 Zn (14– 231 ppm）。这一发现对未来比哈尔邦 Vindhyan 超群的 Ti-V-Ga 和 REE 勘探产生了巨大影响。