課程資訊
課程名稱
海洋熱液系統
Submarine Hydrothermal Systems: Sampling, Biogeochemistry, and Habitats 
開課學期
107-1 
授課對象
理學院  海洋化學組  
授課教師
林卉婷 
課號
Ocean5114 
課程識別碼
241EU6110 
班次
 
學分
2.0 
全/半年
半年 
必/選修
選修 
上課時間
星期五3,4(10:20~12:10) 
上課地點
海研300 
備註
本課程以英語授課。
總人數上限:6人 
Ceiba 課程網頁
http://ceiba.ntu.edu.tw/1071Ocean5114_ 
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課程概述

Submarine hydrothermal systems include high-temperature (often up to 300°C) focus vent systems, low-temperature (>5-~120°C) diffusive vent systems, and low- to warm-temperature ridge-flank aquifers. Submarine hydrothermal fluids originate from seawater recharging into the oceanic basement—basaltic and peridotite rocks—underneath marine sediment. The recharging seawater is heated by magma underneath or by latent heat generated from the cooling of basement rocks. During circulation through basement rocks, recharging seawater is altered due to water-rock and biological reactions and become enriched in hydrogen, methane, and in some cases reduced sulfur species, all of which fuel chemosynthesis-based ecosystems. Access to sample and study hydrothermal habitats are provided by naturally formed hydrothermal vents or by seafloor observatories installed in ocean drilling boreholes.

Heat, turbidity and redox anomalies are commonly used to detect possible venting activities on the seafloor. Remotely operated vehicles and Towed Camera assist visualized sampling. With the ROV operated by Taiwan Ocean Research Institute (TORI) and the IONTU’s Towed Cam, now Taiwanese oceanographers and other scientists can perform precise imaging and sampling of submarine hydrothermal vents in tectonically active seafloor near Taiwan, the Philippines, and Indonesia.

This course is designed to connect this newly developing research field (in Taiwan) to students at NTU. In this class, students will learn techniques and instruments used to detect and sample hydrothermal fluid on the seafloor. A field trip will be arranged to sample hydrothermal fluids at Kueishantoa shallow hydrothermal vent field. We will seafloor sampling systems such as a multicorer available at NTU. Students will discuss the drastic differences between seawater samples and Kueishantao hydrothermal fluid and their biogeochemical implications. Furthermore, students will learn about recent advances in submarine chemosynthesis-based ecosystems. 

課程目標
(1) Students learn about submarine hydrothermal systems.
(2) Students will identify challenges in current submarine hydrothermal research and trends in overcoming the challenges.
(3) Students will pick a topic of interest about hydrothermal systems as their mid-term oral presentation.
(4) Students know about the similarities and differences among hydrothermal vents, mud volcanos, cold seeps, and hydrothermally influenced sedimentary porewater. 
課程要求
This course will be offered in English and thus, students must be able to understand English well enough to enroll. Students are required to read and present in English. This is a reading intensive course. Students are required to attend the field trip and ALL classes. No more than two unexcused absences are permitted.

Students will have to arrange their own round-trip transportation to 烏石港 (~250 NT$) and pay for insurance (~60 NT$) and daily expense for food (~200 NT$). Total: ~510 NT$

Further details will be available to enrolled students.

For enrollment or any questions related to this course, please contact the instructor: Dr Huei-Ting Lin, tinalinht@ntu.edu.tw 
預期每週課後學習時數
 
Office Hours
 
參考書目
1. Trace Metal Biogeochemistry and Ecology of Deep-Sea Hydrothermal Vent Systems (2016) Springer. Digital file downloadable from NTU library (圖書館提供電子書下載)
2. Biological Sampling in the Deep Sea. (2016) Wiley Blackwell. Digital file downloadable from NTU library (圖書館提供電子書下載)
Extended research articles about Taiwan’s shallow hydrothermal vents near Kueishantao (龜山島熱液研究文獻)
(1) Hung, J.-J., Yeh, H.-Y., Peng, S.-H., Chen, C., 2017. Influence of submarine hydrothermalism on sulfur and metal accumulation in surface sediments in the Kueishantao venting field off northeastern Taiwan. Mar. Chem.
(2) Chen, X.-G., Lyu, S.-S., Garbe-Schonberg, D., Lebrato, M., Li, X., Zhang, H.-Y., Zhang, P.-P., Chen, C.-T.A., Ye, Y., 2016. Heavy metals from Kueishantao shallow-sea hydrothermal vents, offshore northeast Taiwan. Journal of Marine Systems.
(3) Chen, X.-G., Lyu, S.-S., Garbe-Schonberg, D., Lebrato, M., Li, X., Zhang, H.-Y., Zhang, P.-P., Chen, C.-T.A., Ye, Y., 2016. Heavy metals from Kueishantao shallow-sea hydrothermal vents, offshore northeast Taiwan. Journal of Marine Systems.
(4) Chen, X.-G., Lyu, S.-S., Garbe-Schonberg, D., Lebrato, M., Li, X., Zhang, H.-Y., Zhang, P.-P., Chen, C.-T.A., Ye, Y., 2016. Heavy metals from Kueishantao shallow-sea hydrothermal vents, offshore northeast Taiwan. Journal of Marine Systems.
(5) Wu, S.-J., Yang, C.-J., Arthur Chen, C.-T., 2013. A Handheld Sampler for Collecting Organic Samples from Shallow Hydrothermal Vents. Journal of Atmospheric and Oceanic Technology 30, 1951-1958. 
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