{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:Z5MYAYIXJYSR3Q4L2JFJVR6MRU","short_pith_number":"pith:Z5MYAYIX","schema_version":"1.0","canonical_sha256":"cf598061174e251dc38bd24a9ac7cc8d1a9cef330721f1ccf0baddd5e60ea755","source":{"kind":"arxiv","id":"1812.07795","version":1},"attestation_state":"computed","paper":{"title":"An integrated P-T-H2O-lattice strain model to quantify the role of clinopyroxene fractionation on REE+Y/HFSE patterns of mafic alkaline magmas: Application to eruptions at Mt. Etna","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Flavio Di Stefano, Francesco Vetere, Francois Holtz, Jonathan Blundy, Olivier Bachmann, Piergiorgio Scarlato, Serena Pia De Cristofaro, Silvio Mollo, Vanni Tecchiato","submitted_at":"2018-12-19T07:57:28Z","abstract_excerpt":"A correct description and quantification of the geochemical behaviour of REE+Y (rare earth elements and Y) and HFSE (high field strength elements) is a key requirement for modelling petrological and volcanological aspects of magma dynamics. In this context, mafic alkaline magmas (MAM) are characterized by the ubiquitous stability of clinopyroxene from mantle depths to shallow crustal levels. On one hand, clinopyroxene incorporates REE+Y/HFSE at concentration levels that are much higher than those measured for olivine, plagioclase, and magnetite. On the other hand, the composition of clinopyrox"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1812.07795","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-12-19T07:57:28Z","cross_cats_sorted":[],"title_canon_sha256":"6d7a33c51e849541530d5e932d483a23c605704c615d9a641a7159bf998a8fc9","abstract_canon_sha256":"b7a89d7dafad63c1b926dc1f7cb8845e2e2db4ddfad303e8b231cf7da0bea3ad"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:55.953789Z","signature_b64":"Tt4oQnLsDfIynPsPr8eQWX30fkz1vgr22mcsxdiaJXkxJwkinkqyVj1dQ0jSTHsWvnSDqbVolu9E9iAbBZ4FAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf598061174e251dc38bd24a9ac7cc8d1a9cef330721f1ccf0baddd5e60ea755","last_reissued_at":"2026-05-17T23:57:55.953186Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:55.953186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"An integrated P-T-H2O-lattice strain model to quantify the role of clinopyroxene fractionation on REE+Y/HFSE patterns of mafic alkaline magmas: Application to eruptions at Mt. Etna","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Flavio Di Stefano, Francesco Vetere, Francois Holtz, Jonathan Blundy, Olivier Bachmann, Piergiorgio Scarlato, Serena Pia De Cristofaro, Silvio Mollo, Vanni Tecchiato","submitted_at":"2018-12-19T07:57:28Z","abstract_excerpt":"A correct description and quantification of the geochemical behaviour of REE+Y (rare earth elements and Y) and HFSE (high field strength elements) is a key requirement for modelling petrological and volcanological aspects of magma dynamics. In this context, mafic alkaline magmas (MAM) are characterized by the ubiquitous stability of clinopyroxene from mantle depths to shallow crustal levels. On one hand, clinopyroxene incorporates REE+Y/HFSE at concentration levels that are much higher than those measured for olivine, plagioclase, and magnetite. On the other hand, the composition of clinopyrox"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.07795","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1812.07795","created_at":"2026-05-17T23:57:55.953327+00:00"},{"alias_kind":"arxiv_version","alias_value":"1812.07795v1","created_at":"2026-05-17T23:57:55.953327+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.07795","created_at":"2026-05-17T23:57:55.953327+00:00"},{"alias_kind":"pith_short_12","alias_value":"Z5MYAYIXJYSR","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_16","alias_value":"Z5MYAYIXJYSR3Q4L","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_8","alias_value":"Z5MYAYIX","created_at":"2026-05-18T12:33:04.347982+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU","json":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU.json","graph_json":"https://pith.science/api/pith-number/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/graph.json","events_json":"https://pith.science/api/pith-number/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/events.json","paper":"https://pith.science/paper/Z5MYAYIX"},"agent_actions":{"view_html":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU","download_json":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU.json","view_paper":"https://pith.science/paper/Z5MYAYIX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1812.07795&json=true","fetch_graph":"https://pith.science/api/pith-number/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/graph.json","fetch_events":"https://pith.science/api/pith-number/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/action/storage_attestation","attest_author":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/action/author_attestation","sign_citation":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/action/citation_signature","submit_replication":"https://pith.science/pith/Z5MYAYIXJYSR3Q4L2JFJVR6MRU/action/replication_record"}},"created_at":"2026-05-17T23:57:55.953327+00:00","updated_at":"2026-05-17T23:57:55.953327+00:00"}