Geological Field Trip South Sha Chau and Po Chu Tam, Tai O

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1 Assembly Place: Time/Date: Trip Leader: Fee: Includes: Medium of Instruction: Tung Chung Development Pier (10-min walk from Tung Chung MTR Station, see attached map) 9:30 am to 5:00pm, 5 February 2012 (Sunday) Mr. K W Lai $220 (Member of GSHK or Fellow of HKRGGSL) or $320 (Non-member of GSHK or Friend of HKRGGSL) Buffet Lunch, a 1-day CPD Certificate Cantonese/ English Synopsis Colluvial deposits are accumulations of soil and rock debris transported by water-mobilized, gravitational processes. Colluvium is not a particular soil type; rather they are a group of soils relating to slope activities. Their grain sizes vary from big boulder to clay. Based on their geological age, stratigraphy sequence, weathering characteristics of soil matrix and clast, thickness of weathered patina and strength properties (density, c, φ value and permeability), it is suggested that the colluvial deposits of Hong Kong can be divided into three classes: Middle Pleistocene, Late Pleistocene and Holocene age. The typical soil profiles exposed at south Sha Chau and Po Chu Tam of will be seen in the field trip. The trip will end at Tung Chung at about 5 pm. Po Chu Tam South Sha Chau Please be reminded to wear hiking boots and prepare water and mosquito repellent spray for the fieldtrip.

2 Registration and Enquiries Registration is served at a first-come-first-served basis with priority given to members of Geological Society of Hong Kong (GSHK) and the Hong Kong Regional Group of the Geological Society of London (HKRGGSL). Please return the completed registration form by 25 January Successful applicants have to pay the registration fee within 5 days upon our confirmation. Please contact Mr. W K Leung (GSHK) at or Ms Celia Choy (HKRGGSL) at for any enquiries. Assembly Place Tung Chung Development Pier (10-min walk from Tung Chung MTR Station) Tung Chung Development Pier

3 Geological Field Trip Figure 1 Middle Pleistocene to Holocene colluvium of Po Chu Tam, Figure 2 Geological section of Middle Pleistocene to Holocene colluvium of Po Chu Tam,

4 Geological Field Trip Figure 3 Middle Pleistocene to Holocene colluvium of Sha Chau Island Figure 4 The relation between terrestrial and marine deposits in offshore area of. Depositional breaks occurred on the top of terrestrial deposits

5 Attn: Mr. W K Leung ( gshkpb@gmail.com) (Member or Non-member of GSHK) or Ms. Celia Choy ( celiachoy@gmail.com) (Fellow or Friend of HKRGGSL) * Registration Form Event: Time/ Date: Meeting Location: Geological Field Trip 9:30 am to 5:00pm, 5 February 2012 (Sunday) Tung Chung Development Pier Participant(s): (Mr/Ms/Dr/Prof)* Name(s): Company:..... Member of GSHK/ Fellow of HKRGGSL*: Yes/ No * GSL Fellowship No. (for Fellow of HKRGGSL only).... Tel: Signature:.. Date:... * Delete as appropriate I,. (name in full in capital letters), accept personal responsibility for any accidents, injury or illness to me or damage to or loss of my property howsoever arising from the Event as a result of my voluntary participation in this Event. I further understand and accept that neither the Hong Kong Regional Group of the Geological Society of London/Geological Society of Hong Kong, nor any of its members, nor the leader nor any other related organization shall accept any responsibility for accidents, injury or illness to me or damage to or loss of my property howsoever arising from the Event. I acknowledge that I will participate in the Event entirely at my own risk. Bank Account of GSHK: HSBC Bank Account of HKRGGSL: HSBC