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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 2010-09 上傳時間 13-Sep-2013 14:10:12 (UTC+8) 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 dc.contributor 政大地政系 en_US dc.creator (作者) Pai,Jen-Te ;Hu,Tai-Shan en_US dc.date (日期) 2010-09 en_US dc.date.accessioned 13-Sep-2013 14:10:12 (UTC+8) - dc.date.available 13-Sep-2013 14:10:12 (UTC+8) - dc.date.issued (上傳時間) 13-Sep-2013 14:10:12 (UTC+8) - dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/60828 - dc.description.abstract (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. en_US dc.language.iso en_US - dc.relation (關聯) Geology, 38(9), 791-794 en_US dc.title (題名) Transmission of Knowledge and the Role of Knowledge Community: Evidence from Bicycle SMEs in Taiwan en_US dc.type (資料類型) article en
