{"corpus_id":131140453,"paper_sha":"a417692da872f0563c1a06bd5b56640373dd3740","doi":"10.1016/0148-9062(96)87121-x","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2297011533,"dblp_id":null,"acl_id":null,"title":"Characteristics of Rg waves recorded from quarry blasts in central Texas","year":1995,"publication_date":"1995-08-01","venue":"Bulletin of The Seismological Society of America (BSSA)","journal":{"name":"Bulletin of the Seismological Society of America","pages":null,"volume":null},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Engineering","Geology"],"reference_count":2,"citation_count":16,"influential_citation_count":1,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"\n Chemical blasts from quarrying operations in central Texas are routinely recorded by the W. M. Keck Foundation Seismological Observatory near China Spring, Texas. The Keck Observatory consists of a single, broadband, three-component, borehole seismograph system. Five quarries, located at distances ranging from 16 to 101 km from the observatory, each detonate from 1 to 6 tons of ammonium nitrate/fuel oil explosive on the average of twice per week. For every quarry for which the orientation of the working face could be determined, dispersed Rg waves are recorded at the Keck Observatory from those quarries at which the working face is directed away from the observatory, but are not observed or are severely attenuated from those quarries at which the working face is directed toward the observatory. Seismograms containing the dispersed Rg are easily recognized as quarry blasts, but those in which the dispersed Rg is absent look like small earthquakes.","claims":[{"public_id":"cl_ac058c9dcd0de3f35b1ce0ca17f7d41e","status":"active","text":"Chemical blasts from five central Texas quarries were recorded by the W. M. Keck Foundation Seismological Observatory at distances of 16 to 101 km.","confidence":0.95,"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_ac058c9dcd0de3f35b1ce0ca17f7d41e"},{"public_id":"cl_26bc34b368998cd2842ef1571bb2275e","status":"active","text":"For quarries with known working-face orientation, dispersed Rg waves were recorded when the working face was directed away from the observatory, but were absent or severely attenuated when the working face was directed toward the observatory.","confidence":0.96,"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_26bc34b368998cd2842ef1571bb2275e"},{"public_id":"cl_d5c89a80c9047376cbc246b59e7e459d","status":"active","text":"Seismograms containing dispersed Rg waves are easily recognized as quarry blasts, whereas seismograms lacking dispersed Rg waves look like small earthquakes.","confidence":0.94,"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_d5c89a80c9047376cbc246b59e7e459d"}],"concepts":[{"public_id":"co_02b0fc340cf7ed40aaba6f4f8ddea375","status":"active","name":"central Texas quarries","description":"The five quarry sites in central Texas whose blasts were analyzed relative to the observatory.","types":["study site"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_02b0fc340cf7ed40aaba6f4f8ddea375"},{"public_id":"co_616d9bc91f99c01a5fa8e160320445b0","status":"active","name":"ammonium nitrate/fuel oil explosive","description":"The explosive material used by the quarries for detonations averaging 1 to 6 tons.","types":["explosive material"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_616d9bc91f99c01a5fa8e160320445b0"},{"public_id":"co_648405e0e5bd1e95e0363318d167a9b0","status":"active","name":"broadband, three-component, borehole seismograph system","description":"The single seismic instrument system at the Keck Observatory used to record ground motion.","types":["measurement system"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_648405e0e5bd1e95e0363318d167a9b0"},{"public_id":"co_66d648bbb1861065258da65b189670cd","status":"active","name":"working face","description":"The oriented quarry face whose direction relative to the observatory is compared with recorded wave behavior.","types":["geologic feature"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_66d648bbb1861065258da65b189670cd"},{"public_id":"co_adc936ea07d9b363bece392e2d838738","status":"active","name":"small earthquakes","description":"Natural seismic events whose waveforms can resemble quarry blasts when dispersed Rg waves are absent.","types":["seismic event"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_adc936ea07d9b363bece392e2d838738"},{"public_id":"co_c9934aa60b6df7760f45b02c77c64456","status":"active","name":"seismograms","description":"Recorded seismic traces used to distinguish quarry blasts from earthquake-like signals.","types":["data record"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_c9934aa60b6df7760f45b02c77c64456"},{"public_id":"co_d50137d6a71101cb11d06c00b878aabf","status":"active","name":"quarrying operations","description":"Industrial rock-extraction activities in central Texas that generate chemical blast signals.","types":["industrial activity"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_d50137d6a71101cb11d06c00b878aabf"},{"public_id":"co_da8772d28f8e53b6c613cf561f2818a8","status":"active","name":"W. M. Keck Foundation Seismological Observatory","description":"A seismological observatory near China Spring, Texas that recorded quarry blast signals.","types":["observatory"],"aliases":["Keck Observatory"],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_da8772d28f8e53b6c613cf561f2818a8"},{"public_id":"co_e0fbc2ba5fefb027395d5e3b8404dfae","status":"active","name":"dispersed Rg waves","description":"Surface-wave signals from quarry blasts that appear dispersed in the recorded seismograms.","types":["seismic wave"],"aliases":["Rg waves"],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_e0fbc2ba5fefb027395d5e3b8404dfae"},{"public_id":"co_f04e603b94d1cf9e75e8e414ca7ec80d","status":"active","name":"chemical blasts","description":"Explosive events from quarrying operations recorded seismically in central Texas.","types":["seismic source"],"aliases":[],"contributors":[{"id":136,"public_id":"3c2apqe3ut","public_label":"Anonymous (3c2apqe3ut)","roles":["extraction"],"url":"https://sah.borca.ai/u/3c2apqe3ut"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_f04e603b94d1cf9e75e8e414ca7ec80d"}],"external_ids":{"DOI":"10.1016/0148-9062(96)87121-x","ArXiv":null,"PubMed":null,"PubMedCentral":null,"MAG":2297011533,"DBLP":null,"ACL":null},"open_access":{"is_open_access":false,"pdf_url":null,"landing_url":"https://sah.borca.ai/papers/131140453","source":null,"pdf_url_source":null,"license":null,"reason":"pdf_url_not_indexed"},"reference_availability":{"status":"available","references_indexed":true,"full_text_available":false,"full_text_source":null,"count_basis":"semantic_scholar_metadata","extraction_status":"not_applicable","reason":null},"source":{"provider":"episteme2","base_corpus":"semantic_scholar_dump","freshness_mode":"unknown","basis":["semantic_scholar_metadata","postgres_metadata"],"limits":["paper metadata is based on indexed upstream scholarly datasets","claims and concepts are available only for extracted papers","absence of claims or concepts means no extracted graph data is available in this response"],"status":"available","degraded":false,"degraded_reasons":[],"diagnostics":{"status":"available","degraded":false,"degraded_reasons":[],"metadata_status":"available","graph_status":"available","abstract_status":"available"},"source_flags":1},"paper_id":632310,"paper_uid":"e63cb981-2c29-4947-8deb-820b3c5760c0","canonical_identity":{"paper_id":632310,"paper_uid":"e63cb981-2c29-4947-8deb-820b3c5760c0","identity_status":"available","lookup_basis":"semantic_scholar_external_id","compatibility_path":"corpus_id"},"url":"https://sah.borca.ai/papers/131140453"}