AUTHOR=Zhen Huancheng , Cao Xinghui , Qu Zhiguo , Zou Dapeng , Xiong Shuai , Song Jiang , Guo Hao 

TITLE=Sediment classification in the paleo-oceanic environment based on multi-acoustic reflectance characteristics in the Southern Tianshan Mountains

JOURNAL=Frontiers in Marine Science

VOLUME=Volume 11 - 2024

YEAR=2024

URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2024.1370274

DOI=10.3389/fmars.2024.1370274

ISSN=2296-7745

ABSTRACT=The grain size of sediments is a crucial parameter in sedimentology. The study of grain size distribution is of significant importance to submarine engineering and water conservancy engineering.In this study, we developed an acoustic reflection measurement system utilizing a self-developed, high-precision, high-frequency shallow stratigraphic profiler. The accuracy of this measurement system was validated using standard acrylic samples. Within the sediment grain size range of 0.3 to 2.5 mm, the acoustic reflection amplitude increases with grain size. However, for grain sizes between 0.1 and 0.3 mm, distinguishing them from grain sizes of 1.0 to 1.5 mm based solely on reflection amplitude is challenging. Notably, the difference in wavefront flare shapes between these grain sizes is readily apparent. Therefore, combining reflection peak amplitude with time-domain waveform analysis enables more precise sediment grain size classification.