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題名: | Transmission of Knowledge and the Role of Knowledge Community: Evidence from Bicycle SMEs in Taiwan | 作者: | Pai,Jen-Te ;Hu,Tai-Shan | 貢獻者: | 政大地政系 | 日期: | Sep-2010 | 上傳時間: | 13-Sep-2013 | 摘要: | We describe the evolution of an ∼600-m-deep tributary outflow channel to Ares Vallis, Mars. High-resolution topography, image analysis, and crater statistics indicate that this tributary canyon developed by the upstream migration of a large, ∼300-m-tall cataract during multiple flood events that span ∼1 b.y. of Mars history (3.7–2.6 Ga). Issuing from Hydapsis Chaos, these floods were initiated at a similar time and occurred over a similar time range to flooding in Ares Vallis, suggesting a potential regional control on flood initiation and chaos formation. In addition, we provide evidence that cataract retreat and significant incision within the tributary canyon occurred only after a series of downcutting events within Ares Vallis. Topography data and crater statistics taken from the floor of Ares Vallis indicate an ∼300 m base-level drop that coincides temporally with an Early Amazonian (ca. 2.6 Ga) flood event and cataract formation within the tributary canyon. The results both confirm the hypothesis of long-term, multiple flood events within martian outflow channels and demonstrate the influence of base-level change on their incision. | 關聯: | Geology, 38(9), 791-794 | 資料類型: | article |
Appears in Collections: | 期刊論文 |
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