Seismic and volcanic influences on lacustrine sedimentation

Professor Tian Yang¹, Professor Carlos Zavala², Professor Shuxin Pan³

¹Chengdu University of Technology, Chendu, China, ²Universidad Nacional del Sur, Bahía Blanca, Argentina, ³Research Institute of Petroleum Exploration and Development Northwest Branch, Lanzhou, China

Lacustrine basins, both on Earth and Mars, are important archives that effectively record climatic and depositional changes throughout the geological history. Sediment gravity flows in lacustrine basins are very common, and are usually triggered by river floods, seismic and volcanic activity. Therefore, understanding the origin, transport, and distribution of sediment gravity flow deposits in lacustrine basins can provide valuable insights into how geological transient events, such as earthquakes, volcanic activity, and floods affect sediment dynamics. However, many theories related to sediment gravity flow deposits in lacustrine basins are derived from knowledge gained in marine basins. Due to the unique environmental characteristics of lacustrine basins, they may exhibit sedimentary facies that differ from those of marine settings. An improved understanding of the transport process and products of sediment gravity flow deposits in lacustrine basins is, therefore, critical for revealing their geological transient event records. This session welcomes contributions from a wide range of studies focusing on the processes and products of sediment gravity flow deposits in lacustrine settings. Studies on mass-transport deposits, debrites, sandy and muddy turbidites, hybrid event beds, supercritical flow deposits, and hyperpycnites are particularly welcome, as well as studies focusing on sediment gravity flow deposits influenced by volcanic activity.