General charaeteristics of bird'seye structure are discussed and distinctions are proposed between bird'seye structure and a number of other features such as reerystallization, tiny holes resulted from dissol...General charaeteristics of bird'seye structure are discussed and distinctions are proposed between bird'seye structure and a number of other features such as reerystallization, tiny holes resulted from dissolution and suncrack shrinkage. “Bird'seye”commonly found in Southwest China owes their origin to gas bubble, shrinkage and other mechanisms,展开更多
The chain-, tadpole-, and drag-shaped grains in carbonate rocks have resulted from.plastic deformation in response to wave movement or from a combined action of vertical and lateral pressures during the early stage of...The chain-, tadpole-, and drag-shaped grains in carbonate rocks have resulted from.plastic deformation in response to wave movement or from a combined action of vertical and lateral pressures during the early stage of syngenesis-diagenesis.展开更多
Internal clastic debris, occurring as thin layers or zones, is widespread in the Triassic strata in Sichuan province, Southwestern China. It's formation is attributed to the disturbance and abrasion of preexisting...Internal clastic debris, occurring as thin layers or zones, is widespread in the Triassic strata in Sichuan province, Southwestern China. It's formation is attributed to the disturbance and abrasion of preexisting sediments or, to a minor extent, sedimentary rocks by the agency of running water. Internal elastic debris thus reflects the sedimentary environments, and may be taken as an indicator of sedimentary facies.It can also be a possible reservoir for oil and gas.展开更多
文摘General charaeteristics of bird'seye structure are discussed and distinctions are proposed between bird'seye structure and a number of other features such as reerystallization, tiny holes resulted from dissolution and suncrack shrinkage. “Bird'seye”commonly found in Southwest China owes their origin to gas bubble, shrinkage and other mechanisms,
文摘The chain-, tadpole-, and drag-shaped grains in carbonate rocks have resulted from.plastic deformation in response to wave movement or from a combined action of vertical and lateral pressures during the early stage of syngenesis-diagenesis.
文摘Internal clastic debris, occurring as thin layers or zones, is widespread in the Triassic strata in Sichuan province, Southwestern China. It's formation is attributed to the disturbance and abrasion of preexisting sediments or, to a minor extent, sedimentary rocks by the agency of running water. Internal elastic debris thus reflects the sedimentary environments, and may be taken as an indicator of sedimentary facies.It can also be a possible reservoir for oil and gas.