Reasons for the formation of Changhua Tianhuang

Some primary veins of fossil are exposed to the surface due to crustal changes and disintegration of diagenetic blocks, scattered in low-lying mountain mud, wetlands, streams and paddy fields, and submerged in sedimentary layers. A few meters deep, less than meters shallow, a few re-screened to the surface. These separated ore blocks have been wetted by water for a long time due to the chemical action of sediment and water, and after a certain distance of transportation, the edges and corners of the ore are ground and knocked down, forming a round block with few cracks and gradually miniaturization; After re-cultivation in different geological environments, the purity and moisture in the ore have been improved, and new stone skins with different thickness, thickness and color have been born outside. Changhuatian Huangshi and Changhuatian yellow bloodstone are mainly produced in the sediments of Lengshuiwan wetland, streams and paddy fields at the lower part of Kangshanling North Slope, which are "rootless and pure" and "veinless". The terrain here is low, and the sedimentary layer and moisture containing humic acid are more abundant, which makes it experience longer and more full soaking, nourishing and longer mileage rolling. After that, the ore is more delicate and moist, the stone skin is softer and slimmer, and the block size is smaller, forming some radish lines and lattice roads.