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        "type": "Feature",
        "properties": {
          "id": "WOODROFFE-1990-SUWARROW-ATOLL",
          "island": "Suwarrow",
          "type": "reference_point",
          "label": "Suwarrow emergent reef and algal ridge sites",
          "note": "Island coordinate printed in the paper; Fig. 2 maps the dated emergent reef and algal-ridge samples from the northern and northeastern atoll rim.",
          "paper": "Woodroffe et al. (1990), Holocene emergence in the Cook Islands, South Pacific",
          "source_name": "Woodroffe et al. 1990, Fig. 2",
          "accuracy": "Atoll coordinate printed in source; mapped sample positions are figure-scale only",
          "coordinate_source": "Text coordinate for Suwarrow Atoll with sample areas shown in Fig. 2",
          "source_coordinates": "13 deg 15'S, 163 deg 30'W",
          "active_dates": [],
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          "reference_figure_image": "static/img/reference-figures/woodroffe-1990-fig-2-suwarrow.jpg",
          "reference_figure_title": "Woodroffe et al. 1990 Fig. 2 - Suwarrow",
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          "kind": "reference_point",
          "reference_source": "Woodroffe et al. 1990, Fig. 2"
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      },
      {
        "type": "Feature",
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          "island": "Offshore Rarotonga",
          "type": "reference_point",
          "label": "Tama Seamount dredge 12",
          "note": "TN426 dredge 12 recovered Tama foidite lavas and xenoliths; the paper reports young 40Ar/39Ar ages from the lava samples.",
          "paper": "Du et al. (2026), Discovery of young submarine volcanism in the Cook Islands: New constraints on the location of the Rarotonga hotspot",
          "source_name": "Du et al. 2026, Fig. 4 / Supplementary Table S1",
          "accuracy": "Dredge coordinate reported in Supplementary Table S1",
          "coordinate_source": "Supplementary Table S1, Mendeley Data v1",
          "source_coordinates": "21.5932 S, 159.2530 W",
          "active_dates": [],
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          "figure_number": "Fig. 4",
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          "figure_publication_page": 287,
          "table_number": "Supplementary Table S1",
          "reference_figure_image": "static/img/reference-figures/du-2026-fig-4-rarotonga-tama.jpg",
          "reference_figure_title": "Du et al. 2026 Fig. 4 - Rarotonga and Tama",
          "reference_figure_caption": "Bathymetry and dredge-site map showing Rarotonga Island, Tama Seamount, and the TN426 dredges.",
          "kind": "reference_point",
          "reference_source": "Du et al. 2026, Fig. 4 / Supplementary Table S1"
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        }
      },
      {
        "type": "Feature",
        "properties": {
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          "type": "reference_point",
          "label": "Rarotonga submarine-flank dredge 14",
          "note": "TN426 dredge 14 recovered tephrite lavas from the submarine flank of Rarotonga; the paper reports a 40Ar/39Ar age from sample TN426-D14-11-lava.",
          "paper": "Du et al. (2026), Discovery of young submarine volcanism in the Cook Islands: New constraints on the location of the Rarotonga hotspot",
          "source_name": "Du et al. 2026, Fig. 4 / Supplementary Table S1",
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          "reference_figure_title": "Du et al. 2026 Fig. 4 - Rarotonga and Tama",
          "reference_figure_caption": "Bathymetry and dredge-site map showing Rarotonga Island, Tama Seamount, and the TN426 dredges.",
          "kind": "reference_point",
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      {
        "type": "Feature",
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          "island": "Pukapuka",
          "type": "reference_point",
          "label": "Pukapuka drill-hole atoll coordinate",
          "note": "Atoll coordinate printed in the paper; Fig. 3 maps drill holes 1P, 2P, and 3P used for the late Quaternary subsurface stratigraphy and geochronology.",
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          "source_name": "Gray et al. 1992, Fig. 3",
          "accuracy": "Atoll coordinate printed in source; drill-hole positions are mapped but not numerically tabulated",
          "coordinate_source": "Text coordinate for Pukapuka with drill-hole map in Fig. 3",
          "source_coordinates": "10 deg 51'30\"S, 165 deg 51'20\"W",
          "active_dates": [],
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          "figure_number": "Fig. 3",
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          "figure_publication_page": 380,
          "reference_figure_image": "static/img/reference-figures/gray-1992-fig-3-pukapuka-rakahanga.jpg",
          "reference_figure_title": "Gray et al. 1992 Fig. 3 - Pukapuka and Rakahanga",
          "reference_figure_caption": "Drill-hole location maps for Pukapuka and Rakahanga atolls.",
          "kind": "reference_point",
          "reference_source": "Gray et al. 1992, Fig. 3"
        },
        "geometry": {
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        }
      },
      {
        "type": "Feature",
        "properties": {
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          "island": "Rakahanga",
          "type": "reference_point",
          "label": "Rakahanga drill-hole atoll coordinate",
          "note": "Atoll coordinate printed in the paper; Fig. 3 maps drill holes 1R and 2R used for the late Quaternary subsurface stratigraphy and geochronology.",
          "paper": "Gray et al. (1992), Geochronology and subsurface stratigraphy of Pukapuka and Rakahanga atolls, Cook Islands",
          "source_name": "Gray et al. 1992, Fig. 3",
          "accuracy": "Atoll coordinate printed in source; drill-hole positions are mapped but not numerically tabulated",
          "coordinate_source": "Text coordinate for Rakahanga with drill-hole map in Fig. 3",
          "source_coordinates": "10 deg 02'20\"S, 161 deg 04'40\"W",
          "active_dates": [],
          "reference_pdf_page": 4,
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          "figure_number": "Fig. 3",
          "figure_pdf_page": 4,
          "figure_publication_page": 380,
          "reference_figure_image": "static/img/reference-figures/gray-1992-fig-3-pukapuka-rakahanga.jpg",
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          "reference_figure_caption": "Drill-hole location maps for Pukapuka and Rakahanga atolls.",
          "kind": "reference_point",
          "reference_source": "Gray et al. 1992, Fig. 3"
        },
        "geometry": {
          "type": "Point",
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        }
      },
      {
        "type": "Feature",
        "properties": {
          "id": "WOODROFFE-1990-ATIU-TEANAPUKU",
          "island": "Atiu",
          "type": "reference_point",
          "label": "Teanapuku bench and notch locality",
          "note": "Fig. 5 maps Teanapuku as one of the Atiu bench and notch localities used to document Holocene emergence; no radiocarbon sample is tabulated for this site.",
          "paper": "Woodroffe et al. (1990), Holocene emergence in the Cook Islands, South Pacific",
          "source_name": "Woodroffe et al. 1990, Fig. 5",
          "accuracy": "Approximate point digitized from Fig. 5; use for field context, not resurvey",
          "coordinate_source": "Figure 5 mapped geomorphic locality",
          "source_coordinates": "Teanapuku, Atiu",
          "active_dates": [],
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          "figure_number": "Fig. 5",
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          "reference_figure_title": "Woodroffe et al. 1990 Fig. 5 - Atiu",
          "reference_figure_caption": "Atiu map showing bench and notch localities associated with Holocene emergence evidence.",
          "kind": "reference_point",
          "reference_source": "Woodroffe et al. 1990, Fig. 5"
        },
        "geometry": {
          "type": "Point",
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        }
      }
    ]
  }
}