The heavy mineral composition is characterized by high contents of mica and chlorite (34.54 ), dolomite (27.76 ), and actinolite (ten.09 ). In OTS-4, the heavy mineral assemblages are dominated by mica and chlorite (27.08 ), dolomite (16.67 ), and actinolite (14.58 ). In OTS-5, the heavy minerals are mainly composed of mica and chlorite (24.31 ), dolomite (17.78 ), and actinolite (14.58 ). 3.two. Grain Size of Important Heavy Mineral Phases Along with the relative content material of many heavy minerals, this study also obtained the grain size distribution in the heavy mineral particles by way of TIMA. Among them, the size array of mica and chlorite was 2.2072.00 and the majority of the particles (722 ) were distributed in the range of silt (43 ); the size selection of actinolite was 2.2011.00 and many of the particles had been silt (763 ); the particle size selection of hornblende was two.2031.00 and 776 with the particles have been silt; and also the particle size range of epidote was two.2011.00 using a larger silt content (836 ). Amongst the key heavy minerals, dolomite had the finest particles (two.205.00 ). Eight-five to ninety-six percent on the particles have been in the array of silt (Figure three). As a result, if a particle size selection of 6325 was Nitrocefin site employed for heavy mineral evaluation, most of the information about the composition of heavy minerals is lost.Minerals 2021, 11,was 2.2011.00 m using a higher silt content (836 ). Among the main heavy minerals, dolomite had the finest particles (2.205.00 m). Eight-five to ninety-six percent with the particles had been inside the selection of silt (Figure three). As a result, if a particle size array of 6325 five of 13 m was employed for heavy mineral evaluation, many of the details about the composition of heavy minerals is lost.Figure Histogram of grain size distribution of principal heavy mineral phases from H4-S2. Figure 3.three. Histogram of grain size distribution of major heavy mineral phases from H4-S2.three.3. Heavy Mineral Assemblages within the Potential Provenance Region 3.3. Heavy Mineral Assemblages inside the Possible Provenance Region As a way to fully grasp the distinction between the SOT as well as the prospective provenance In order to understand the difference in between the SOT as well as the prospective provenance area, this study MNITMT References compiled the heavy mineral assemblage data in the Yangtze River, the area, this study compiled the heavy mineral assemblage information of the Yangtze River, the East China Sea shelf, Taiwan rivers, along with other SOT boreholes (Table three). It ought to be noted East China Sea shelf, Taiwan rivers, and other SOT boreholes (Table three). It must be noted that the research of Taiwan rivers and H4-S3 focused on heavy mineral assemblages using a that the research of Taiwan rivers and H4-S3 focused on heavy mineral assemblages with complete grain size, even though other regions had been enthusiastic about heavy mineral assemblages in the a full grain size, although other regions have been keen on heavy mineral assemblages inside the 6350 variety [6,135,22,23]. Meanwhile, all of the prior studies inside the possible 6350 m variety [6,135,22,23]. Meanwhile, all of the earlier research inside the potential provenance places have been performed by conventional petrographic heavy mineral identification. provenance regions were conducted by classic petrographic heavy mineral identificaTherefore, the heavy mineral assemblage within the prospective source region may be diverse tion. Thus, the heavy mineral assemblage within the potential supply region may well be differfrom that in this study. In particular, actinolite only appears in H4-S1.