{
 "about": "The record of this Plate: the facts it is drawn from, kept inside the work. Plain JSON; the artwork does not read it. CC0 1.0, no rights reserved.",
 "work": {"title": "Caroline", "series": "Plates", "artist": "Kenny Lienhard", "year": 2026, "plate": "20 of 52", "palette": "azurite"},
 "plate": {"name": "Caroline", "code": "CL", "model": "PB2002 (Bird 2003)", "class": "minor", "area_km2": 1528206, "centroid_lat_lon": [3.171, 140.549], "ocean_share": 1.0, "land_share": 0.0},
 "motion": {"frame": "no-net-rotation", "euler_pole_lat_lon": [-75.2361, 26.2759], "rotation_deg_per_million_years": 0.54314, "speed_mm_per_year_at_centroid": 59.63, "heading_deg_at_centroid": 283.6, "speed_range_mm_per_year": [58.44, 60.26], "the_artwork_drifts": "-59.63 mm a year along its cut, one frame of rock every 14494 years"},
 "cover": {"deep ocean": 0.8764, "slope and ridge": 0.1156, "ocean trench": 0.0077, "shelf sea": 0.0003},
 "palette_from": ["deep ocean", "ocean", "ocean trench"],
 "era": null,
 "past": {"account": "The past. The Caroline plate is almost all deep ocean, mostly three to five kilometres down, and the ice age barely touched it. At the glacial peak the sea stood more than 120 metres lower, so its three tiny atolls, Mapia, Sorol and Eauripik, stood as flat-topped limestone islands, and a sediment core from the Eauripik Rise shows the sea surface about 2.6 degrees cooler than it was 7,000 to 11,000 years ago. No ice ever reached these waters.", "source": "Lambeck et al. 2014, PNAS 111:15296; Dickinson 2009, GSA Today 19:4; de Garidel-Thoron et al. 2005, Nature 433:294; Crosta et al. 2022, Climate of the Past 18:1729; Lhardy et al. 2021, Climate of the Past 17:1139; Méheust et al. 2018, arktos 4:1; Reeves et al. 2013, Quaternary Science Reviews 74:97"},
 "history": [{"years_ago": 26000000, "range_years_ago": [33000000, 26000000], "what": "The spreading ridge that built this plate's ocean floor shut down.", "source": "Gaina and Muller 2007, Earth-Science Reviews 83:177, doi:10.1016/j.earscirev.2007.04.004; GPlates Portal extinct ridge compilation, Caroline Basin page, portal.gplates.org"}],
 "outline_lon_lat": [[[139.89, 8.87], [139.19, 9.06], [138.36, 9.38], [138.31, 9.2], [137.98, 8.53], [137.53, 7.87], [137.14, 7.62], [136.76, 7.37], [136.18, 6.99], [135.41, 6.9], [134.52, 6.99], [134.27, 6.61], [133.99, 6.33], [133.67, 6.16], [133.43, 5.96], [133.31, 5.73], [133.24, 5.35], [133.19, 5.02], [133.03, 4.79], [132.79, 4.12], [132.74, 3.7], [132.79, 3.31], [132.85, 2.91], [132.82, 2.54], [132.77, 2.26], [132.73, 1.73], [132.72, 1.16], [132.65, 0.81], [132.51, 0.02], [132.82, -0.04], [133.33, -0.15], [134.47, 0.26], [134.94, 0.42], [135.66, -0.02], [136.45, -0.23], [137.44, -0.62], [138.05, -0.72], [138.67, -0.82], [138.79, -1.16], [139.26, -1.39], [139.81, -1.56], [140.23, -1.77], [140.84, -1.89], [141.19, -2.17], [141.59, -2.27], [141.87, -2.4], [142.25, -2.69], [142.39, -2.46], [142.63, -1.92], [142.92, -1.45], [143.26, -1.16], [143.81, -0.95], [144.36, -0.74], [145.03, -0.53], [145.5, -0.47], [145.92, -0.35], [146.59, -0.29], [147.06, -0.29], [147.35, -0.27], [147.86, -0.43], [148.34, -0.41], [148.72, -0.39], [148.91, -0.46], [149.27, -0.65], [149.25, -0.4], [149.19, -0.14], [149.11, 0.41], [148.86, 0.94], [148.7, 1.49], [148.67, 2.63], [148.69, 3.14], [148.19, 3.78], [147.77, 4.39], [147.08, 5.14], [146.38, 5.88], [146.0, 6.16], [145.47, 6.35], [145.07, 6.5], [144.66, 6.61], [144.03, 6.68], [143.56, 6.81], [143.07, 7.17], [142.26, 7.61], [141.52, 8.12], [141.05, 8.39], [140.58, 8.67], [139.89, 8.87]]],
 "sources": ["Plate outlines and motion: Bird, P. (2003). An updated digital model of plate boundaries. Geochemistry, Geophysics, Geosystems 4(3), 1027, doi:10.1029/2001GC000252. No-net-rotation frame computed from PB2002 alone.", "What covers each plate: ESA CCI Land Cover and Water Bodies, NOAA ETOPO 2022, Koppen-Geiger climate maps, NSIDC Sea Ice Index, on a 1 arc-minute grid."],
 "engine_sha256": "a7fbc03acc0fc9ba343881bb88ddaf2b7564564d8bc9cbed16e75e47e01fb3f2"
}