RADIOCARBON DATES FROM NATIVE AMERICAN ARCHAEOLOGICAL SITES
ON THE OREGON COAST
Madonna L. Moss and Jon M. Erlandson
Department of Anthropology, University of Oregon
Over the course of our research to evaluate archaeological sites on the Oregon Coast for their eligibility to the National Register of Historic Places (NRHP), we obtained a large number of radiocarbon dates. Over a four-year period, we obtained 205 radiocarbon dates from 109 archaeological sites. Many of these sites are now listed on the National Register (Moss and Erlandson 1996), and dates are listed on individual site forms. However, the entire text of the nomination runs over 600 pages, and must be requested from the State Historic Preservation Office. In order to make the dates more easily accessible to Oregon archaeologists, and with the encouragement of CAHO newsletter editor, Pamela Endzweig, we present all the radiocarbon dates we obtained between 1992 and 1996 associated with this project. The dates listed below also comprise the database we used in a recent article about the utility of radiocarbon dating in archaeological surveys (Erlandson and Moss 1999). The editor of American Antiquity did not want to publish the entire date list, so we present it here (Table 1). Also of potential interest to CAHO readers, the published article discusses calibration of dates on marine samples in some detail (Erlandson and Moss 1999:436-437).
The Oregon coast research was funded by Historic Preservation Fund Grants-in-Aid provided by the National Park Service (U.S. Department of Interior) and the Oregon State Historic Preservation Office, with additional support from the University of Oregon. At the SHPO, we extend our thanks to Leland Gilsen, Kimberly Dunn, and Elisabeth Potter. We are grateful to the Coquille Indian Tribe, Confederated Tribes of Coos, Lower Umpqua, and Siuslaw Indians, and the Confederated Tribes of Siletz for their support of this work. We also appreciate all the assistance of UO graduate students, particularly Scott Byram, Mark
Tveskov, and Rob Losey. Special thanks are due Pamela Endzweig for supporting the publication of this date list.During 1998-99 a new program of archaeological site evaluation, radiocarbon dating, and NRHP nomination is being conducted by Jon Erlandson, Scott Byram and Rob Losey. The primary focus of this work is to evaluate, map, and radiocarbon date Oregon coast wood stake fishing weirs and traps and add them to the NRHP multiple property submission of 1996.
Table 1: Radiocarbon Dates Received from 1992 to 1996
Site # Lab # Uncorrected Adjusted Estimated Calendar
(OR-) (Beta-) 14C Date 12C/12C Age Age Range (AD/BC) Material Dated Sample Provenience
CLT-12A 77225 460 + 60 880 + 60 AD 1630 (1670) 1720 CA mussel shell Seacliff: 75-80 cm b.s.
CLT-12B 77226 740 + 70 -- AD 1390 (1440) 1480 CA mussel shell Seacliff: 30 cm b.s.
CLT-21A 77227 540 + 50 -- AD 1510 (1620) 1670 CA mussel shell Trail cut bank: 25 cm b.s.
CLT-23 77228 570 + 80 -- AD 1480 (1550) 1670 CA mussel shells Gully profile: 0-25 cm b.s.
TI-35N 80098 350 + 70 -- AD 1700 (1810) 1870 Burnt CA mussels Seacliff: base of midden
80097 410 + 60 830 + 60 AD 1660 (1700) 1830 CA mussel shells 5 m terrace: 5-10 cm b.s.
TI-35S 80099 1120 + 70 -- AD 1030 (1110) 1220 Burnt mussel shells Trail cut bank: 220 cm b.s.
TI-36 77229 550 + 60 980 + 60 AD 1490 (1560) 1660 CA mussel shells Soil probe: base of midden
TI-38 80100 430 + 70 -- AD 1640 (1690) 1820 CA mussel shell Looter's pit: 60 cm b.s.
80101 740 + 80 -- AD 1340 (1440) 1490 Burnt CA mussels Looter's pit: 6-8 cm b.s.
TI-39 77230 500 + 80 920 + 80 AD 1530 (1650) 1700 Tresus clam shell Intertidal midden lag deposit
TI-44 77231 410 + 60 -- AD 1660 (1700) 1830 Protothaca shell Looter's pit: 70-75 cm b.s.
80553 510 + 60 -- AD 1530 (1650) 1690 Clinocardium shell Looter's pit: 20-25 cm b.s
TI-45 80554 1170 + 50 -- AD 790 (890) 960 Wood charcoal Seacliff: base of foredune
TI-46 80555 480 + 50 -- AD 1590 (1660) 1700 CA mussel shells Soil probe: 10-20 cm b.s.
TI-47 80977 900 + 50 -- AD 1290 (1310) 1340 CA mussel shells Unit 31: 150-170 cm b.s
80978 1220 + 50 -- AD 960 (1020) 1060 CA mussel shells Unit 31: 230-250 cm b.s
TI-54 80556 1040 + 70 -- AD 1090 (1210) 1290 CA mussel shells Trail cut bank: 0-10 cm b.s.
77232 1260 + 70 1680 + 70 AD 890 (990) 1050 CA mussel shells Soil probe: 0-15 cm b.s.
TI-61 80557 520 + 70 -- AD 1520 (1640) 1690 CA mussel shells Trail cut bank: 45-50 cm b.s.
TI-62 77233 480 + 80 -- AD 1410 (1440) 1470 Wood charcoal Eroded hearth in intertidal zone
77234 780 + 70 1200 + 70 AD 1330 (1420) 1460 CA mussel shells From around intertidal hearth
TI-64 85391 190 + 60 -- AD 1655 (1775) 1950* Wood weir stake Single line of 18 stakes
TI-68 85392 320 + 70 -- AD 1475 (1545) 1655* Wood weir stake In Netarts saltmarsh channel
TI-71 85393 80 + 70 -- AD 1685 (1900) 1930* Wood weir stake Nehalem Bay mudflats
LNC-14 64626 720 + 80 -- AD 1390 (1450) 1510 Protothaca shell Seacliff: ca. 3 m b.s.
LNC-19 83226 2820 + 60 -- 880 (800) 760 BC Tresus clam shell Base of seacliff in SW area
83227 2870 + 90 -- 970 (840) 780 BC CA mussel shell Base of seacliff in SW area
LNC-43 64627 570 + 60 -- AD 1470 (1550) 1670 CA mussel shells Trail cut: midden base
LNC-44 62735 1130 + 80 1540 + 80 AD 1020 (1110) 1230 CA mussel shell Seacliff: midden base
62736 1300 + 60 -- AD 660 ( 725) 800 Wood charcoal Seacliff: 30-35 cm
LNC-48 64629 600 + 70 -- AD 1460 (1520) 1650 Burned CA mussels Seacliff: basal hearth
62738 600 + 60 1010 + 60 AD 1470 (1530) 1650 CA mussel shell Seacliff: 40 cm above base
74867 650 + 70 -- AD 1440 (1490) 1560 CA mussel shells Seacliff: 5-25 cm b.s.
64630 1330 + 80 -- AD 640 ( 690) 780 Wood charcoal Sea cliff: midden base
62737 1380 + 70 1790 + 70 AD 760 ( 870) 970 CA mussel shells Seacliff: midden base
64628 1430 + 70 1830 + 80 AD 700 ( 810) 930 Burned CA mussels See Beta-64630 (ash lens)
LNC-63A 63745 1140 + 80 1560 + 80 AD 1010 (1070) 1210 CA mussel shells Seacliff: top of midden
63746 1360 + 70 1770 + 70 AD 780 ( 890) 990 CA mussel shells ": midden base (50-60 cm)
LNC-63B 63747 930 + 70 1350 + 70 AD 1230 (1300) 135 0 CA mussel shell Seacliff: 10-15 cm b.s.
LNC-63C 63748 640 + 70 1060 + 70 AD 1440 (1490) 1590 CA mussel shells Seacliff: 10-20 cm b.s.
LNC-65 71877 80 + 60 -- AD 1670 (1800) 1950* Wood charcoal South site area: 23-28 cm b.s
71878 690 + 60 -- AD 1340 (1460) 1630 CA mussel shells Seacliff: 25-30 cm b.s.
LNC-66S 95459 510 + 60 -- AD 1530 (1650) 1690 CA mussel shells Shell feature, southern site area
LNC-66N 64633 730 + 60 -- AD 1380 (1440) 1490 CA mussel shells Seacliff: midden base
LNC-67 64632 470 + 80 -- AD 1550 (1670) 1720 CA mussel shell Seacliff: 15-20 cm b.s.
LNC-68 64634 790 + 80 1220 + 90 AD 1300 (1400) 1450 CA mussel shells Seacliff: 15 cm b.s.
LNC-72 74870 220 + 70 -- "Modern" CA mussel shells Seacliff: 5-15 cm b.s.
95461 300 + 60 -- AD 1670 (1780) 1870* CA mussel shell Southern site area
95460 460 + 70 -- AD 1500 (1670) 1950* CA mussel shell Seacliff: Feature 5
LNC-73 95462 390 + 60 -- AD 1610 (1710) 1950* CA mussel shells Seacliff feature, N. site area
LNC-76 83324 320 + 40 -- AD 1510 (1540) 1650* Wood weir stake Zone 3: Feature
83323 350 + 70 -- AD 1450 (1590) 1650* Wood weir stake Zone 2: cut bank
83322 560 + 70 -- AD 1310 (1410) 1430 Wood weir stake Zone 2: Feature 4
77988 1160 + 40 -- AD 870 (890) 960 Wood weir stake Zone 1
83326 1330 + 80 -- AD 650 (680) 780 Wood weir stake Zone 5: Feature 1
83321 1400 + 60 -- AD 620 (650) 670 Wood weir stake Zone 1: southeasternmost line
83325 2120 + 70 -- 200 (140) 40 BC* Wood weir stake Zone 4: Feature 1
LNC-77 83327 1920 + 80 -- AD 10 (80) 220 Wood weir stake Locus 1: southern weir line
LNC-78 83328 2220 + 80 -- 390 (300) 170 BC* Wood weir stake Feature 1
83329 2410 + 80 -- 760 (410) 390 BC Wood weir stake Feature 2
LNC-81 94116 1900 + 60 -- AD 30 (100) 200* Wood weir stake Yaquina Bay, McCaffery Slough
LNC-82 94117 920 + 60 -- AD 1030 (1130) 1210* Wood weir stake Yaquina Bay, McCaffery Slough
LNC-83 94118 100 + 60 -- AD 1680 (1890) 1955* Wood weir stake Yaquina Bay, Poole Slough
LNC-84 94119 150 + 60 -- AD 1670 (1810) 1955* Wood weir stake Yaquina Bay, Poole Slough
LNC-85 94120 1150 + 70 -- AD 780 (925) 990* Wood weir stake Yaquina Bay, east site area
LNC-96-1 95463 650 + 60 -- AD 1450 (1490) 1550 CA mussel shells Sea cliff, shell feature
LA-1 95458 330 + 80 -- AD 1670 (1830) 1880 CA mussel shell Seacliff: midden base, S. site area
61128 490 + 70 910 + 70 AD 1540 (1660) 1700 CA mussel shell Seacliff: 0-5 cm, N. site area
61129 750 + 60 1170 + 70 AD 1370 (1430) 1480 CA mussel shell Seacliff: 30-40 cm, N. site area
LA-2 61121 620 + 60 1030 + 60 AD 1460 (1510) 1630 CA mussel shells Seacliff: 80-85 cm
61120 640 + 50 1040 + 50 AD 1460 (1510) 1600 CA mussel shells Seacliff: 0-10 cm
LA-3A 96904 880 + 70 -- AD 1040 (1180) 1245 Wood charcoal Seacliff hearth, NW area
61123 1090 + 60 1500 + 60 AD 1050 (1170) 1240 CA mussel shells Stream bank: 70-80 cm
61122 1200 + 80 1620 + 80 AD 950 (1030) 1130 CA mussel shells Stream bank: 40-45 cm
LA-3B 61124 300 + 60 710 + 70 AD 1720 (1890) 1950* CA mussel shells Seacliff: 0-10 cm
61125 430 + 70 850 + 70 AD 1640 (1690) 1820 Tresus clam shell Seacliff: midden base
LA-4 62994 770 + 60 1190 + 60 AD 1340 (1420) 1470 CA mussel shell Seacliff: midden base
LA-5 62995 630 + 50 1040 + 60 AD 1450 (1510) 1620 CA mussel shell Seacliff: midden base
LA-6 62998 770 + 80 1190 + 80 AD 1320 (1420) 1470 CA mussel shell Seacliff: top of midden
62997 850 + 70 1270 + 70 AD 1280 (1336) 1430 CA mussel shell Seacliff: midden base
62996 >45,700 -- Unknown Charred wood Seacliff: base of dunes
LA-7S 64618 1000 + 70 -- AD 980 (1020) 1160 Wood charcoal Seacliff: near base
64619 1050 + 60 -- AD 1070 (1200) 1280 CA mussel shells See Beta-64618 (25-30 cm)
LA-7N 64616 310 + 80 740 + 80 AD 1690 (1840) 1950 CA mussel shell Thin midden atop foredune
64617 410 + 80 -- AD 1640 (1700) 1870 CA mussel shell Low terrace: surface midden
LA-8 64621 410 + 60 -- AD 1650 (1700) 1840 Burned CA mussels Seacliff: 50-60 cm b.s.
64620 1160 + 50 -- AD 780 ( 920) 850 Wood charcoal SW area: basal hearth
63743 1180 + 70 1590 + 70 AD 990 (1050) 1170 Burned CA mussels See Beta-64620
LA-10A 64622 810 + 70 -- AD 1300 (1400) 1450 CA mussel shells Stream cut: 35-40 cm (base)
LA-10B 63841 610 + 50 1040 + 60 AD 1450 (1510) 1620 Saxidomus shell Trail rill: ca. 1 m b.s.
LA-10C 63840 1030 + 50 1440 + 50 AD 1150 (1230) 1290 CA mussel shells Seacliff: 40-45 cm b.s.
LA-11 64623 430 + 60 -- AD 1640 (1690) 1820 CA mussel shell Surface of gopher mound
83225 510 + 50 -- AD 1540 (1650) 1680 Burnt CA mussels River bank: 0-25 cm b.s.
LA-13 63744 800 + 60 1220 + 60 AD 1320 (1400) 1450 CA mussel shells Seacliff: 15-25 cm
LA-16 64624 270 + 70 -- AD 1520 (1650) 1950 Wood charcoal Seacliff: 65-80 cm
61126 290 + 70 700 + 70 AD 1730 (1900) 1950 Tresus clam shell Seacliff: 0-5 cm
61127 500 + 70 920 + 70 AD 1530 (1650) 1700 CA mussel shell Seacliff: 70-75 cm
LA-17N 94223 980 + 50 -- AD 1200 (1270) 1310 CA mussel shells Cut bank, N. end of mound
LA-17S 91370 110 + 50 -- AD 1680 (1820) 1955* Wood charcoal 26.5S/2.5W: midden feature
91369 380 + 80 -- AD 1660 (1710) 1950* CA mussel shell 26.5S/2.5W: midden feature
94224 490 + 60 -- AD 1550 (1660) 1700 CA mussel shell Feature 3: 105-140 cm b.s.
LA-227 62734 540 + 70 940 + 70 AD 1510 (1640) 1690 CA mussel shell Creek bank: 20 cm (base)
64625 610 + 70 -- AD 1450 (1510) 1650 Tresus clam shell Seacliff talus: N. area
LA-228 66665 850 + 70 -- AD 1290 (1340) 1420 CA mussel shell Stream bank: ca. 40 cm b.s.
LA-1101 74866 130 + 60 -- AD 1670 (1810) 1950* Wood weir stake Surface: south site boundary
83330 280 + 50 -- AD 1530 (1650) 1660 Wood weir stake Feature 1: Northern site area
LA-1104 63842 "modern" -- AD 1700 (1950) 1950 Wood wier stake South wing
63844 90 + 60 -- AD 1680 (1920*) 1950 Wood weir stake North line
63843 160 + 60 -- AD 1660 (1820*) 1950 Wood weir stake Southern arc
LA-1105 74745 910 + 50 -- AD 1030 (1160) 1210* Wood weir stake Western weir feature
CS-3 83221 550 + 70 -- AD 1490 (1600) 1670 CA mussel shells Test Pit B:40-50 cm b.s.
85389 890 + 80 -- AD 1035 (1175) 1245 Wood charcoal 50N/60E: Level 7
CS-10A 64611 1220 + 70 1660 + 70 AD 900 (1010) 1060 CA mussel shells Seacliff: 20-25 cm b.s.
83222 1540 + 60 -- AD 630 (680) 760 CA mussel shells Seacliff: basal midden lens
64610 2100 + 90 2540 + 90 BC 60 (AD 60) AD170 Protothaca shell Seacliff: 95-100 cm b.s.
CS-10B 71873 390 + 60 -- AD 1610 (1710) 1950* Tresus clam shell East site area: 5-10 cm b.s.
CS-24 64612 2440 + 70 2850 + 80 400 ( 350) 200 BC Tresus clam shell Site surface: bridge area
CS-34N 92832 420 + 60 -- AD 1660 (1690) 1820 CA mussel shell N95/E105: 20-30 cm
71784 460 + 70 -- AD 1500 (1670) 1950* CA mussel shells Seacliff: 20-30 cm b.s.
CS-34S 71875 520 + 70 940 + 80 AD 1450 (1640) 1830 CA mussel shell Seacliff: 10-15 cm b.s
CS-66 64613 1390 + 70 1830 + 70 AD 710 (810) 910 CA mussel shells Shell feature in trail
CS-67 64615 430 + 70 860 + 70 AD 1630 (1680) 1820 CA mussel shells Seacliff: 10-12 cm b.s.
64614 1240 + 50 -- AD 690 (790) 880 Wood charcoal Seacliff: 30-35 cm b.s.
CS-110 80550 430 + 60 -- AD 1650 (1690) 1810 Clinocardium shell Seacliff: middle of midden
CS-112 77987 420 + 60 840 + 60 AD 1660 (1690) 1820 Clinocardium shell Seacliff profile
CS-120 67580 620 + 80 -- AD 1400 (1510) 1690 CA mussel shell Site surface: east dune
67579 2310 + 60 -- 370 BC (170 BC) AD 20 Tresus clam shell Site surface: west dune
64631 5380 + 100 -- 4130 (3970) 3890 BC Tresus clam shell Site surface: east dune
CS-122 67581 180 + 50 -- AD 1660 (1800) 1950* Wood weir stake Southern line
CS-123 67582 240 + 70 -- AD 1640 (1660) 1950* Wood weir stake Coos Bay: Palouse Slough
CS-124 74738 30 + 50 -- AD 1690 (1950) 1950* Wood weir stake Coos Bay: Haynes Inlet
CS-125 74740 230 + 70 -- AD 1640 (1660) 1950* Wood weir stake Weir feature #3
74739 290 + 50 -- AD 1520 (1650) 1660* Wood weir stake Weir feature #2
CS-126 74741 290 + 60 -- AD 1520 (1650) 1660* Wood weir stake Coos Bay: Haynes Inlet
CS-128 74742 140 + 50 -- AD 1670 (1810) 1950 Wood weir stake Southeast weir line
67583 210 + 50 -- AD 1650 (1800) 1950* Wood weir stake North side of main channel
CS-129 71876 850 + 60 -- AD 1240 (1340) 1460 CA mussel shells Seacliff: 30-35 cm b.s., W. area
86016 1080 + 60 -- AD 1060 (1170) 1250 CA mussel shells Sea cliff midden feature, E. area
CS-130 88465 400 + 60 -- AD 1440 (1470) 1630 Wood weir stake Jerry's weir feature
88466 600 + 70 -- AD 1300 (1395) 1415 Wood weir stake Weir feature 7
CS-130 72791 660 + 50 -- AD 1290 (1300) 1390 Wood weir stake Baseline E: 16.2E/1.3S
72790 670 + 50 -- AD 1280 (1300) 1390 Wood weir stake 1 m E. of Feature B3
86017 790 + 60 -- AD 1260 (1300) 1345 Wood weir stake Below feature B8c
74746 940 + 50 -- AD 1020 (1120) 1190* Wood weir stake West site area
CS-132 74868 20 + 60 -- AD 1690 (1950) 1950* Wood weir stake Coos Bay: North Slough
CS-134 74869 180 + 60 -- AD 1660 (1800) 1950* Wood weir stake Coos Bay: North Slough
CS-137 85390 220 + 70 -- Historic CA mussel shell Seacliff shell midden feature
CS-138 80551 1060 + 60 -- AD 1070 (1190) 1270 CA mussel shell Seacliff: base of 25 cm midden 92833 1160 + 60 -- AD 1010 (1060) 1170 CA mussel shell N98/E105: Level 3
92834 1360 + 70 -- AD 780 (880) 980 CA mussel shells N94/E101: Feature 1
CS-140 77989 450 + 60 850 + 60 AD 1650 (1690) 1810 Tresus clam shell Seacliff profile
CS-142 77992 330 + 60 740 + 60 AD 1670 (1840) 1870 Mixed shells Root wad of fallen tree
92836 940 + 70 -- AD 1220 (1290) 1340 Clinocardium shell N100/E100: 45-50 cm
92835 1080 + 70 -- AD 1050 (1170) 1260 Clinocardium shell N100/E100: 0-10 cm
92837 1450 + 70 -- AD 680 (770) 880 Protothaca shells N100/E100: 80-85 cm
CS-143 77990 100 + 60 -- AD 1680 (1910) 1960* Wood weir stake East side of tidal channel
CS-144 77991 70 + 60 -- AD 1700 (1960) 1960* Wood weir stake Linear line of weir stakes
CS-96-1 91365 250 + 80 -- AD 1530 (1660) 1950* Wood weir stake Intertidal weir line
CS-96-2 91366 390 + 70 810 + 80 AD 1660 (1710) 1950* CA mussel shells Soil probe: 20-25 cm b.s.
CU-1 73001 1010 + 70 -- AD 1150 (1240) 1300 CA mussel shell Base of midden (25 cm b.s.)
CU-12B 76075 300 + 50 -- AD 1680 (1780) 1870* CA mussel shells Lower 1/3rd of eroding midden
CU-12A 66876 460 + 70 -- AD 1420 (1460) 1500 CA mussel shells Seacliff: 30 cm b.s.
CU-14 66877 510 + 70 -- AD 1520 (1650) 1690 CA mussel shell Surface of midden talus
CU-16B 80552 620 + 60 -- AD 1460 (1510) 1620 CA mussel shell Site surface
CU-31A 66878 700 + 70 -- AD 1410 (1460) 1510 CA mussel shell Deflated surface of Area A
CU-31B 66879 890 + 90 -- AD 1250 (1320) 1410 CA mussel shell Deflated surface of Area B
CU-31C 66880 490 + 70 -- AD 1540 (1660) 1700 CA mussel shell Thin lens in dune, Area C
CU-31D 73003 840 + 60 -- AD 1300 (1360) 1430 CA mussel shell Surface, Area D
CU-31E 80102 760 + 80 -- AD 1390 (1440) 1480 CA mussel shells Looter's pit: 0-10 cm b.s.
CU-31F 80103 740 + 60 -- AD 1340 (1430) 1480 Protothaca shell River bank: Shell feature
CU-31H 91367 810 + 70 -- AD 1310 (1400) 1440 Burned CA mussel Locus H: deflated surface
CU-32 66881 470 + 90 -- AD 1540 (1670) 1790 CA mussel shell Thin lens exposed in gully
CU-33 66882 1360 + 80 -- AD 770 (880) 990 Saxidomus shell Rodent tailings in west area
66883 1720 + 70 -- AD 420 (530) 620 CA mussel shell -30 cmbs, gully above seacliff
CU-35 66885 160 + 70 -- Historic CA mussel shells Base of 20 cm lens, looters pit
66884 610 + 70 1020 + 70 AD 1460 (1520) 1650 CA mussel shell Base of 40 cm shell deposit
CU-36 66886 800 + 70 -- AD 1310 (1400) 1460 CA mussel shells 60-65 cmbs, in looters pit
CU-37N 66888 280 + 60 700 + 60 Historic Saxidomus shell Rodent tailings, site surface
66887 1010 + 80 -- AD 1130 (1240) 1300 CA mussel shell Rodent tailings, site surface
CU-38 66889 820 + 70 1230 + 70 AD 1310 (1400) 1440 Protothaca shell Site surface
CU-61 74744 260 + 60 -- AD 1530 (1650) 1950* Charred wood House timber
74743 280 + 50 -- AD 1530 (1650) 1660 Charred wood House timber
83224 440 + 70 -- AD 1550 (1660) 1700 Tresus clam shell 1961 excavation in N area
83223 490 + 60 -- AD 1640 (1680) 1810 CA mussel shell 1961 excavation in N area
91368 530 + 70 -- AD 1500 (1620) 1680 CA mussel shell SW area, 101 cut: 120 cm
CU-67C 73004 7790 + 70 8200 + 70 6480 (6420) 6350 BC Burned CA mussels Deflated site surface
66890 8150 + 120 8560 + 120 7040 (6940) 6640 BC CA mussel shells Deflated site surface
66891 8250 + 80 -- 7200 (7030) 6960 BC CA mussel shells Deflated site surface
CU-69 66892 1250 + 80 -- AD 890 (1000) 1660 CA mussel shell 50-60 cm b.s.
CU-70S 66893 1130 + 70 -- AD 1020 (1080) 1210 CA mussel shells 10-25 cmbs, sea cliff
CU-70N 73002 2180 + 60 -- 110 BC (10 BC) AD 80 Burned CA mussels Midden base: 10-15 cm b.s.
CU-71 66894 1500 + 80 -- AD 650 (710) 810 CA mussel shell Midden base, looters pit
CU-73 66895 1580 + 60 2010 + 60 AD 580 (660) 700 Hinnites shell Rodent burrow, Eagle Rock
CU-78 66896 1310 + 80 -- AD 810 (930) 1020 CA mussel shell 70-75 cmbs, gully exposure
CU-79 66897 680 + 70 -- AD 1420 (1470) 1530 Protothaca shell Surface of cut bank along trail
CU-80 66898 1220 + 60 1640 + 60 AD 950 (1020) 1070 CA mussel shell 95-100 cmbs, looters pit
CU-142 66899 630 + 70 1050 + 70 AD 1450 (1500) 1620 CA mussel shell 45-50 cmbs, looters pit
CU-153 66900 560 + 70 980 + 70 AD 1490 (1560) 1670 CA mussel shells 65-70 cmbs, lower overhang
66901 670 + 60 -- AD 1280 (1300) 1390 Wood charcoal 65-70 cmbs, lower overhang
CU-155 76076 1030 + 70 -- AD 1110 (1220) 1290 CA mussel shells Seacliff: 5-15 cm b.s.
CU-156 76077 600 + 60 -- AD 1470 (1520) 1640 CA mussel shells Seacliff: 25-35 cm b.s.
CU-157 66902 320 + 60 740 + 60 AD 1670 (1840) 1870 Saxidomus shell Redeposited fill
66903 450 + 70 -- AD 1630 (1680) 1800 CA mussel shell Redeposited fill
CU-209 73005 1020 + 60 -- AD 980 (1010) 1150 Wood charcoal Seacliff: 50-65 cm b.s.
______________________________________
Note: Calendar dates were derived from the CALIB 3.0.3 calibration program (Stuiver and Reimer1993), with dates presented as a range at one standard deviation, with intercept in parenthesis. Estimated values include an average of +420 + 10 years for 13C/12C ratios on marine or estuarine shell, and an estimated correction for the regional oceanic reservoir effect (delta-R) of 240 + 50 years (Moss and Erlandson 1993). Calendar dates marked by an asterisk have multiple intercepts on the calibration curve.
References Cited
Erlandson, Jon M. and Madonna L. Moss
1999 The Systematic Use of Radiocarbon Dating in Archaeological Surveys in Coastal and Other Erosional Environments. American Antiquity 64(3):431-443.
Moss, Madonna L. and Jon M. Erlandson
1996 Native American Archaeological Sites of the Oregon Coast: a Multiple Property Nomination to the National Register of Historic Places. Manuscript on file, Keeper of the National Register of Historic Places, National Park Service, Washington, D.C., and Oregon State Historic Preservation Office, Department of Parks and Recreation, Salem.
Stuiver, Minze and Paula Reimer
1993 Extended 14C Database and Revised CALIB 3.0 14C Age Calibration Program. Radiocarbon 35:215.230.