2023-04-242024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/657525台灣南部和鄰近海域地區位於馬尼拉海溝俯衝帶和菲律賓板塊上的呂宋島弧碰撞歐亞大陸之間的過渡帶，目前正處於弧-陸碰撞的新生時期，因此提供了一個研究建造宜居地球的造山與大陸地殼增生作用的天然實驗室。由於透過跨領域的詳細研究以了解整個地殼-地函系統內部構造和動力行為是探索這些作用如何影響地球演化的致要關鍵，本研究因此提出跨領域和院校為期三年的整合計劃，於該地區佈設大規模，密集的寬頻地震網，包涵陸上測站和以及東部鄰近海域的海底地震儀，以收集全世界的地震資料和連續週遭噪訊探究岩石圈甚至更深的地球內部構造。其中子計劃一旨在使用密集陣列測站所記錄的接收函數解析岩石圈不連續面的構造，其中包括地殼內間斷面，莫氏不連續面，板塊邊界或交接面，以及大陸岩石圈內分層面等。將得到的不連續面構造特徵與其他子計劃的研究結果，包括震波速度非均質變化，地震發震構造和震波性質，以及符合實際地球組成和物理性質規範的地球動力學模型相結合，將有助於我們全面了解歐亞和菲律賓板塊之間相互作用及其對台灣造山隆起和呂宋前弧盆地和島弧最終命運的影響。 Southern Taiwan and offshore region lie at the transition between the Manila trench subduction and Luzon arc collision, currently undergoing a nascent stage of arc-continent collision and therefore providing a natural laboratory for studying mountain building and continental growth that build the habitable Earth. As unraveling the internal structures and dynamics of the entire crust-mantle system in great detail through multidisciplinary efforts is a key to understanding how these processes affect the earth’s evolution, we propose to deploy a large-scale, dense amphibious passive broadband seismic network to collect unprecedented earthquake and ambient noise data for probing deep into the lithosphere and even deeper to address these grand problems in a 3-year integrated project. The sub-project 1 aims at mapping lithospheric discontinuities, including the intracrustal discontinuity, Moho, the plate boundary or interface, fine-scale layering within the continental lithosphere, etc., using array-based receiver function imaging methods. By integrating the resolved discontinuity features with internal seismic velocity heterogeneity, seismogenic structures and properties, and physically and compositionally realistic geodynamic models resulting from the other sub-projects, we will gain a fresh view into the interaction between the Eurasian and Philippines Sea Plate and its consequences on the uplifting of the Taiwan orogeny and the fate of the Luzon forearc and arc.臺灣造山帶;隱沒-碰撞過渡帶;弧陸碰撞;造山運動;大陸地殼增生;接收函數; 莫氏不連續面;岩石圈;寬頻地震網;陣列地震學;Taiwan orogen; subduction-collision transition; arc-continent collision; mountain building; continental growth; Moho discontinuity; lithosphere; broadband seimic network; array seismology