查詢結果分析
來源資料
相關文獻
- Morphological and Seismic Characteristics of the North Mien-Hua Submarine Canyon off Northeastern Taiwan
- Seismic and Morphological Characteristics of the Kaohsiung Submarine Canyon, Southwestern Taiwan
- Onshore/Offshore Wide-Angle Deep Seismic Profiling in Taiwan
- Preliminary Crustal Structures Across Central Taiwan from Modeling of the Onshore-Offshore Wide-Angle Seismic Data
- Preliminary Results of a Large Offset Seismic Survey West of Hengchun Peninsula, Southern Taiwan
- Late Quaternary Structure in Chaikang, Southwestern Taiwan by Shallow Seismics
- Coherence Analysis of 3-D Seismic Data Acquired in Offshore Taiwan
- Constraints on Free Gas and Gas Hydrate Bearing Sediments from Multi-Channel Seismic Data, Offshore Southwestern Taiwan
- Assessment of Potential Source Rock of Pre-Miocene Sequence through Seismic Inversion and Seismic Sequence Analysis in C Block, Offshore Taiwan
- 臺灣西南部平原地區上新統至更新統震測資料之研究
頁籤選單縮合
題名 | Seismic and Morphological Characteristics of the Kaohsiung Submarine Canyon, Southwestern Taiwan=臺灣西南海域高雄峽谷之震測及形貌特徵 |
---|---|
作 者 | 俞何興; 蔣正興; | 書刊名 | 中國地質學會會刊 |
卷期 | 39:1 1996.01[民85.01] |
頁次 | 頁73-86 |
分類號 | 351.926 |
關鍵詞 | 海底峽谷; 臺灣; 震測; Submarine canyon; Taiwan; Seismics; |
語文 | 英文(English) |
中文摘要 | 高雄海底峽谷為臺灣西南海域海底峽谷中最小的一條峽谷,由陸棚邊緣呈直線狀 延伸至陸坡上部約700公尺的等深線而終止。本文以多頻道震測剖面展示其特徵並引申其成 因的沈積作用。 崩塌及平行反射層截切的現象發生在峽谷上游之谷壁指出下切侵蝕作用,峽谷的下游部份 展示相當平緩的反射層進覆峽谷底部,顯示沈積物充填的結果,兩種峽谷充填型態可被確 認,即混沌充填及丘狀進覆充填,兩者都與重力塊體搬運有關。震測資料指出此峽谷可區 分成兩個部份,即上游侵蝕部份及下游堆積部份。 高雄峽谷的流徑相當短而直,且無支流。此峽谷橫剖面形貌由上游的V型(侵蝕區)改變 至下游的U型(堆積及侵蝕區)。震測剖面沒有提出斷層沿著峽谷流徑存在的證據,因此 下坡海底侵蝕為此峽谷的主要成因。 |
英文摘要 | The Kaohsiung Canyon, the smallest of the submarine canyons on the southwestern Taiwan margin, extends from the shelf edge along a straight course on the upper slope to the 700 m isobath. Multichannel seismic profiles reveal the seismic characteristics and infer the sedimentary processes forming the canyon. In the upper canyon, the seismic profiles reveal slumping features and the termination of parallel reflectors against the steep canyon walls, suggesting erosional canyon downcutting. In the lower canyon segments, seismic configurations illustrate relatively flat reflectors onlapping the canyon bottom, resulting from sediment infilling. Two types of canyon fills are recognized: a chaotic fill and a mounded onlap fill, both suggesting gravity mass transport. On the basis of seismic interpretations, this canyon can be divided into two parts: an upcanyon erosional zone and a downcanyon mixed The course of the Kaohsiung Canyon is remarkably short and straight but with no distributaries as compared to the adjacent long and sinuous Kaoping Canyon. The cross-sectional morphology changes from V-shaped in the upcanyon sections (erosional zone) to U-shaped in the downcanyon sections (depositional and erosional zone). The seismic data provide no evidence for a fault zone along the canyon course. Rather, downslope submarine excavation is the major process forming the canyon. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。