The table below summarizes a database of all C14 dates from geological contexts in Hong Kong. Some dates obtained after 1996 are still being studied or prepared for publication, and are not included. See notes after the table on certain problem samples; see the table of dates from archaeological contexts for samples recovered during excavation of cultural layers above some of the samples listed here.

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C14 dates from Geological Sites

Site Sample Result +/- Lab No. Landform mPD Date Collected Note
Admiralty MTR station wood 6520 130 GIF-4387 seabed (reclaimed) -7.3 1977
Argyle MTR Station shell 7020 160 GIF-4813 -- -11.0 1978
Chau Tau Roolet 5475 155 Si86-123 Mud Flat 0.4 1986
Chau Tau Rootlet 5093 130 Si86-124 Mud Flat 0.3 1986
Chek Lap Kok Rotten Wood >40000 none Cs621 Alluvial Plain -28.4 1970-90
Chek Lap Kok wood >35230 none Beta-41236 seabed -23.0 --
Chek Lap Kok wood 16420 660 Beta-4137 seabed -15.8 1970-90
Chek Lap Kok wood 26770 840 Beta-4139 seabed -25.5 1970-90
Chek Lap Kok wood >37590 none Beta-4138 seabed -24.2 1970-90
Chek Lap Kok wood >33440 none Beta-4140 seabed -26.5 1970-90
Chek Lap Kok wood 18220 440 Beta-4141 seabed -20.0 1970-90
Chek Lap Kok wood 36480 830 Beta-4142 seabed -36.5 1970-90
Chek Lap Kok wood 20000 270 Beta-4143 seabed -37.5 1970-90
Chek Lap Kok wood 27660 590 Beta-4144 seabed -25.5 1970-90
Chek Lap Kok wood >35230 none Beta-4136 seabed -23.3 1981
Chek Lap Kok wood 16420 660 Beta-4137 seabed -15.8 1982
Chek Lap Kok wood 26770 840 Beta-4139 seabed -25.5 1982
Chek Lap Kok wood 37590 1590 Beta-4138 seabed -24.2 1981
Chek Lap Kok wood 33440 1740 Beta-4140 seabed -26.5 1981
Chek Lap Kok wood 18220 440 Beta-4141 seabed -20.0 1982
Chek Lap Kok wood 36480 830 Beta-4142 seabed -36.5 1982
Chek Lap Kok wood 20000 270 Beta-4143 seabed -37.5 1981
Chek Lap Kok wood 27660 590 Beta-4144 seabed -25.5 1981
Chim Uk, Tai Po Marine mud 610 50 Gf9379 Mud Flat -0.5 1990
Chim Uk, Tai Po Shell Fragment 610 50 Gf9380 Mud Flat -0.5 1989
Chuk Yuen Rotten Wood 6670 130 Gf932 Mud Flat 1.3 1988
Chung Hom Wan, HK island wood 5455 105 I-8830 low slope 1.2 1975 1
Cleverly Street MTR station wood 8600 270 KWG-407 ? -16.5 1970-90
East Harbour Crossing organic mud 21580 1210 ANU-6168 seabed -20.0 1987 3
East Harbour Crossing organic mud 23980 2055 ANU-6169 seabed -20.8 1987 3
Fu Tei Wan, Chek Lap Kok wood 6160 60 Beta-42854 valley floor 1.5 1990 1
Fu Tei, Chek Lap Kok charcoal 11280 80 Beta-42859 hillslope 15.8 1990 1,2
Fung Chi Heung Rotten Wood 1900 93 Si86-109 Mud Flat 0.9 1985
Ha Wan Tsuen Organic mud 520 112 Si86-121 Mud Flat 1.0 1986
High Island East Dam wood 5980 180 KWG-286 -- -12.0 1970-90
High Island West Dam wood >40000 none I-7950 seabed -20.1 1970-90
High Island West Dam wood >40000 none I-7949 seabed -20.0 1970-90
High Island West Dam wood >36600 none ANU-1359 seabed -20.0 1970-90
High Island West Dam shell 7920 110 HAR-871 seabed -17.4 1970-90
High Island West Dam wood 7830 140 HAR-869 seabed -17.0 1970-90
High Island West Dam shell 7790 90 HAR-870 seabed -16.1 1970-90
High Island West Dam wood 6640 100 HAR-868 seabed -16.1 1970-90
Junk Bay Shell 8080 130 Cs619 Marine Plain -19.7 1970-90
Kau Sat Wan, Lantau sediment 370 50 Beta-63580 stream deposit 2.5 1993 1
Lai Chi Kok wood 8785 125 I-8269 seabed (reclaimed) -14.1 1970-90
Lai Chi Kok Bay shell 7970 150 GIF-5243 seabed (reclaimed) -17.0 1980
Lin Wo Market Organic mud 10160 340 Gf930 Alluvial Plain 9.0 1988
Lok Ma Chau Rotten Wood 20681 844 Si Bottom of Mud Flat -1.5 1986
Lung Kwu Sheung Tan peat 3060 80 Beta-40988 valley floor 2.5 1990 1,4
Lung Kwu Sheung Tan wood 5060 80 Beta-40989 valley floor 2.1 1990 1
Mai Po Organic mud 3220 95 Gf927 Mud Flat 2.5 1987
Mai Po Organic mud 3160 100 Gf931 Mud Flat 2.5 1988
Nam Pin Wai Organic mud 6760 130 Gf928 Mud Flat -1.0 1986
Ngau Au, Tung Chung clay 910 60 Beta-60310 valley floor 7.0 1993 1
Penny's Bay, Lantau wood 5440 80 Beta-52252 stream deposit 1.5 1992 1
Penny's Bay, Lantau wood 6030 60 Beta-52793 stream deposit 1.5 1992 1
Penny's Bay, Lantau wood 5940 60 Beta-52795 stream deposit 1.5 1992 1
Penny's Bay, Lantau plant remains 4580 60 Beta-113746 stream deposit 1.0 1992 1
Po Leng, Fanling Organic mud 2250 90 Gf933 Alluvial Plain 15.0 1988
Prince Edward MTR station shell 6580 130 GIF-4558 seabed (reclaimed) -11.0 1978
Sha Tin wood 23270 720 KWG-280 ? -15.5 1970-90
Sham Wan, Lamma Organic clay 6600 ? ? Swampy,partly Intertidal 0.0 1970-90
Sham Wan, Lamma shells 5520 110 I-10059 valley floor ca -1.8 1975 5
Sham Wan, Lamma shell 3870 80 HAR-3589 valley floor 1.0 1975 6
Shan Ha Road Rotten Wood 1630 70 Gf926 Stream -3.4 1988
Shan Ha Tsuen, Yuen Long Organic clay 33575 3186 Gf870009 Terrace Alluvial Plain 15.4 1987
Shan Ha Tsuen, Yuen Long Organic clay 32500 490 Beta Terrace Alluvial Plain 15.7 1987
Shan Ha Tsuen, Yuen Long Organic clay 28670 2210 Beta-18651 Terrace Alluvial Plain 17.2 1987
Shan Ha Tsuen, Yuen Long Organic clay 27770 540 Gf870302 Terrace Alluvial Plain 12.7 1987
Shan Ha Tsuen, Yuen Long Organic clay 21863 1107 Gf870016 Terrace Alluvial Plain 17.8 1987
Shan Ha Tsuen, Yuen Long Organic clay 20240 992 Gf870008 Terrace Alluvial Plain 19.0 1987
Shan Ha Tsuen, Yuen Long Organic clay 18249 1238 Gf870017 Terrace Alluvial Plain 19.6 1987
Shan Ha Tsuen, Yuen Long Organic clay 17960 230 Beta-18652 Terrace Alluvial Plain 19.3 1985 7
Shan Ha Tsuen, Yuen Long Organic clay 16289 831 Gf87006 Terrace Alluvial Plain 20.5 1987
Sheung Cheung Wai Organic mud 3110 185 Si86-122 Mud Flat 0.2 1986
Sheung Wan MTR station shell 36230 680 KWG-482 ? -17.0 1970-90
Sheung Wan MTR station wood 31450 610 KWG-483 ? -15.5 1970-90
Sheung Wan MTR station shell 30560 580 KWG-569 ? -18.0 1970-90
Sheung Wan MTR station organic mud 18710 520 KWG-408 ? -20.0 1970-90
Tai Ho, Lantau charcoal 30 50 Beta-113747 sand bank 2.5 1998 1
Tin Hau MTR station wood 20410 610 KWG-287 ? -10.6 1970-90
Tin Shui Wai Organic mud 38260 970 Gf890975 Ancient Slope Wash -34.7 1988
Tin Shui Wai Organic mud 37910 900 Gf890976 Ancient Slope Wash -34.5 1988
Tin Shui Wai Organic mud 37430 850 Gf890977 Ancient Slope Wash -34.2 1988
Tin Shui Wai Organic mud 27770 600 Gf890974 Ancient Alluvial Plain -18.5 1988
Tin Shui Wai Wood 27320 620 Gf890971 Ancient Alluvial Plain -18.2 1988
Tin Shui Wai Wood 26950 570 Gf890972 Ancient Alluvial Plain -17.3 1988
Tin Shui Wai Marine mud 21840 550 Gf890973 Ancient Marine Plain -10.1 1988
Tin Shui Wai Marine mud 20920 540 Gf890978 Ancient Marine Plain -9.3 1988
Wong Kong Shan, Fanling Organic mud 23950 530 Gf935 Alluvial Plain 11.3 1988
Wong Kong Shan, Fanling Organic mud 22780 530 Gf936 Alluvial Plain 11.1 1988
Wong Kong Shan, Fanling Organic mud 2100 90 Gf934 Alluvial Plain 11.5 1988
Yung Long South, Deep Bay clay 630 80 Beta-60316 valley floor 5.0 1992 1
Yung Long, Deep Bay Organic clay 1510 70 Gf924 Stream 85.0 1988
Yung Long, Deep Bay Rotten Wood 1510 70 Gf929 Stream 85.0 1988

Notes

1. Sample was collected during archaeological excavation.

2. Charcoal lens in colluvium of an ancient hillslope accumulation.

3. Pre-holocene deposit; post-depositional leaching possible

4. Grey alluvial clay or lagoonal deposit; first estimated to be more recent, due to the presence of historical sherds in the deposit immediately above.

5. Sample collected from -1 to -2.6 mPD.

6. Sample collected from +0.6 to +1.4 mPD.

7. Fourth seam of peat.



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