(1978). Ammonium Fixation in Nigeria soils: 5 types of clay minerals and relationships with ammonium fixation. Soils Science Society, 25:283-293.Opuwaribo, E., Odu, C.T.I., 1978. Ammonium fixation in Nigerian soils: 4. The effects of time, potassium, and wet and dry cycles on...
The authigenic clay minerals are composed of the following: illite-smectite mixed layer, illite, kaolinite, and chlorite (not detected in the samples). The dominant clay minerals are illite/smectite mixed layer, illite, and kaolinite respectively. The I/S mixed layer occurs as irregular flakes ...
One of the effective factors in internal erosion in earth dams is the clay minerals used in dams as well as the effects of compaction efforts on soil in sample preparation. In this research, internal erosion and the effect of clay minerals and compaction effort on internal erosion were ...
The discovery that soil colloids are predominately composed of clay minerals has set in motion a number of researches on the chemical and physical properties of specimens of the several recognized types of such minerals. This investigation is concerned with the effect...
Ceramic tiles are among the most popular types of tile available on the market today. This type of tile is made from clay minerals such as feldspar, sand, and talc that have been fired at higher temperatures. The firing process adds strength and color pigments to create different textures suc...
pounded the rocks we see every day. Planet Earth has experienced incredible amounts ofdeformationover her four-and-a-half-thousand-year history. Although we use this term in the field of geology, the forces that act upon rock formations are the same forces we use when making a clay model....
Shale: Fine-grained, made of clay and silt, and often breaks into thin layers. Shale is commonly found in quiet water environments like lakes and deep ocean floors. Sedimentary Rocks Examples Chemical Sedimentary Rocks: Form from the precipitation of minerals from solution. Formation: These form...
Silt is another granular substance, comprised of fine rock particles, midway in size between sand and clay. When silty soil is dry, it feels soft and floury. When saturated, it becomes slick like soap. Silty soil is high in minerals owing to its rock origins, making it very fertile. Howe...
Other types of rock might contain valuable minerals, and a geologic map can be used as a preliminary tool for deciding where to drill or prospect. Areas near volcanoes might be underlain by lava flows, lahar deposits, pyroclastic flows or other volcanic products. Geologic maps can be used to...
Sedimentary rocks include common types such as chalk, limestone, sandstone, clay and shale. Sedimentary rocks cover 75% of the Earth’s surface. Four basic processes are involved in the formation of a clastic sedimentary rock: weathering (erosion)caused mainly by friction of waves, transportation ...