Understanding Volcanic Processes at the Submarine Puna Ridge Kilauea, Hawaii

我们计划对普纳山脊进行地质、地球物理和地球化学调查，普纳山脊是基拉韦厄火山东部裂谷区的海底延伸。我们的主要科学目标是确定和限制控制岩浆侵入和熔岩喷发沿中央裂谷带的基本过程。裂谷带的形态特征通常被用来推断火山的内部结构，这突出了本研究的广泛适用性，以及充分认识火山裂谷带的形成和演化的重要性。目前，对岩脉就位和岩浆沿裂谷运移的控制作用、岩脉系统内岩浆储存的作用以及对熔岩沉积的形状、大小和样式的控制作用尚不清楚。我们的多学科研究项目将使用多种科学技术来描述和理解在普纳山脊发生的过程，包括分析高分辨率的深度测量和侧面扫描声纳图像，近底部磁剖面，数码摄影，以及通过岩石疏浚和玻璃取心收集的样本。

9618226 Smith We plan a geological, geophysical, and geochemical investigation of the Puna Ridge, the submarine extension of Kilauea Volcano's East Rift Zone. Our main scientific objective is to identify and constrain the fundamental processes which govern the intrusion of magma and the eruption of lavas along a centrally-fed rift zone. The characteristics of rift zone morphology are typically used to infer the internal architecture of volcanoes which underscores the broad applicability of this study, and the importance of fully understanding the formation and evolution of a volcanic rift zone. Currently, the controls on the emplacement of dikes and the transport of magma along a rift, the role of magma storage within the dike system, and the controls on the shapes, sizes, and styles of lava deposits are not well known. Our multidisciplinary research project will use a diverse suite of scientific techniques to characterize and understand the processes acting at the Puna Ridge, including the analysis of high-resolution swath bathymetry and side-scan sonar imagery, near-bottom magnetic profiles, digital photography, and samples collected by rock dredging and glass coring.