{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.triple-junction","code":"thing-q1199041","url":"https://ver.cy/models/thing/q1199041/","name":"triple junction","alternateNames":[],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.QTY"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A point on the Earth's surface where the boundaries of three tectonic plates meet, classified by the types of boundary that join, such as ridge-ridge-ridge or ridge-trench-transform, and by whether the configuration is stable over time; examples include the Afar triple junction where the Red Sea, Gulf of Aden and East African Rift meet, the Mendocino triple junction off California and the Rodrigues triple junction in the Indian Ocean.","purpose":"Let an agent explain triple junctions and their classification, identify notable examples, relay their role in plate tectonics and geological activity, and distinguish them from ordinary plate boundaries.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Three plates meet","Type by boundary combination","Stable or unstable geometry","Sites of rifting and volcanism"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a triple junction is.","layers":[{"id":"definition","name":"Definition","description":"Definition and types.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a triple junction, and how are types classified?","kind":"definition"},{"text":"Is the feature a triple junction, a single boundary or a hotspot?","kind":"boundary"}]}]},{"id":"stability","name":"Stability","description":"Stability.","findings":[{"id":"stability-finding","name":"Stability","description":"Stability.","questions":[{"text":"What makes a triple junction stable or unstable over time?","kind":"definition"},{"text":"Which entry fits plate tectonics?","kind":"action"}]}]}]},{"id":"examples","name":"Examples","description":"Notable junctions.","layers":[{"id":"examples","name":"Examples","description":"Examples.","findings":[{"id":"examples-finding","name":"Examples","description":"Examples.","questions":[{"text":"What are the notable triple junctions, such as Afar, Mendocino and Rodrigues, and what characterises them?","kind":"provenance"},{"text":"Which entry fits the specific junction?","kind":"action"}]}]},{"id":"activity","name":"Activity","description":"Geological activity.","findings":[{"id":"activity-finding","name":"Activity","description":"Activity.","questions":[{"text":"What earthquakes, volcanism and rifting occur at junctions?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]}]},{"id":"theory","name":"Theory","description":"Theory and history.","layers":[{"id":"theory","name":"Theory","description":"Kinematic theory.","findings":[{"id":"theory-finding","name":"Theory","description":"Theory.","questions":[{"text":"How did McKenzie and Morgan analyse triple junction kinematics in 1969?","kind":"provenance"},{"text":"Which entry fits the history of plate tectonics?","kind":"action"}]}]},{"id":"evolution","name":"Evolution","description":"Evolution over time.","findings":[{"id":"evolution-finding","name":"Evolution","description":"Evolution.","questions":[{"text":"How do triple junctions migrate and change, and how are ancient ones reconstructed?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"context","name":"Context","description":"Hazards and study.","layers":[{"id":"hazards","name":"Hazards","description":"Hazards.","findings":[{"id":"hazards-finding","name":"Hazards","description":"Hazards.","questions":[{"text":"What hazards affect regions near triple junctions?","kind":"provenance"},{"text":"Which entry fits seismic hazard?","kind":"action"}]}]},{"id":"study","name":"Study","description":"Study.","findings":[{"id":"study-finding","name":"Study","description":"Study.","questions":[{"text":"How are triple junctions studied with geodesy and marine geophysics?","kind":"provenance"},{"text":"Which entry fits geodesy?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain triple junctions and their classification with sources.","Report seismic and volcanic activity near junctions from geological agencies."],"mustNot":["Present uncertain plate boundaries as settled.","Make earthquake predictions not issued by geological agencies.","Confuse triple junctions with hotspots or single boundaries.","Spread alarm about hazards near a junction beyond official assessments."],"requiresHuman":["Public statements about earthquake or volcanic risk."]},"ethics":{"considerations":["False earthquake predictions cause panic or false reassurance.","People near plate junctions deserve accurate hazard information."],"affectedParties":["Residents of tectonically active regions","Students and readers"]},"owners":{"steward":"Nobody: a natural feature; geological surveys hold the scientific record.","roles":[],"masterSystems":[]},"relations":[{"target":"Q12859380","type":"parent","note":"registry parent class"},{"target":"Q2221906","type":"parent","note":"registry parent class"},{"target":"plate boundary","type":"related","note":"in registry terms"},{"target":"geographic location","type":"related","note":"in registry terms"},{"target":"plate tectonics","type":"related","note":"the framework"},{"target":"rift","type":"related","note":"in many cases"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.triple-junction","Wikidata: Q1199041 (https://www.wikidata.org/wiki/Q1199041)"]},"properties":{"applicability":"not-applicable","items":["major triple junctions: about 10-15 count - currently active, by classification"]},"recognition":{"applicability":"optional","items":["Meeting point of three plate boundaries","Classified by boundary types and stability","Two-plate boundaries are ridges, trenches or transforms; hotspots are not junctions","Not a visible object as such; a location where rifts, ridges, trenches or faults meet on maps."]},"capabilities":{"applicability":"required","items":["explain the concept and classification","identify examples","relay tectonic significance","distinguish from other boundaries"]},"hazards":{"applicability":"required","items":["Earthquakes and volcanism near junctions","Confusing junctions with hotspots or single boundaries","Uncertain plate boundary definitions"]},"interfaces":{"applicability":"required","items":["No regulation; geological classification conventions"]},"context":{"applicability":"required","items":["Not applicable; a tectonic feature.","ridge-ridge-ridge junctions such as Rodrigues","fault-fault-trench junctions such as Mendocino","rift-related junctions such as Afar","trench-trench-trench junctions such as Boso","ancient triple junctions in the geological record"]}},"sources":[{"title":"Wikidata item Q1199041: triple junction","url":"https://www.wikidata.org/wiki/Q1199041","note":"identity and sense of the item"},{"title":"Wikipedia: Triple junction","url":"https://en.wikipedia.org/wiki/Triple_junction","note":"general description of the item"}],"openQuestions":["Should notable junctions be separate entries?","How should plate models be linked?","How should stability analysis be recorded?"],"resources":{"spec":"/models/things/publications/thing-q1199041/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1199041/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T23:41:50Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:25+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}