Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W4243001686', 'doi': 'https://doi.org/10.1130/g22352a.1', 'title': 'Baking black opal in the desert sun: The importance of silica in desert varnish', 'display_name': 'Baking black opal in the desert sun: The importance of silica in desert varnish', 'publication_year': 2006, 'publication_date': '2006-01-01', 'ids': {'openalex': 'https://openalex.org/W4243001686', 'doi': 'https://doi.org/10.1130/g22352a.1'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1130/g22352a.1', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S56162041', 'display_name': 'Geology', 'issn_l': '0091-7613', 'issn': ['0091-7613', '1943-2682'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319845', 'host_organization_name': 'Geological Society of America', 'host_organization_lineage': ['https://openalex.org/P4310319845'], 'host_organization_lineage_names': ['Geological Society of America'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5112524604', 'display_name': 'Randall S. Perry', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I47508984', 'display_name': 'Imperial College London', 'ror': 'https://ror.org/041kmwe10', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I47508984']}, {'id': 'https://openalex.org/I1302918504', 'display_name': 'Planetary Science Institute', 'ror': 'https://ror.org/05vvg9554', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1302918504']}], 'countries': ['GB', 'US'], 'is_corresponding': False, 'raw_author_name': 'Randall S. Perry', 'raw_affiliation_strings': ['Impacts and Astromaterials Research Centre, Department of Earth Science and Engineering, South Kensington Campus, Imperial College, London SW7 2AZ, UK, and Planetary Science Institute, Seattle, Washington 98115, USA'], 'affiliations': [{'raw_affiliation_string': 'Impacts and Astromaterials Research Centre, Department of Earth Science and Engineering, South Kensington Campus, Imperial College, London SW7 2AZ, UK, and Planetary Science Institute, Seattle, Washington 98115, USA', 'institution_ids': ['https://openalex.org/I47508984', 'https://openalex.org/I1302918504']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5024075982', 'display_name': 'Bridget Y. Lynne', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I154130895', 'display_name': 'University of Auckland', 'ror': 'https://ror.org/03b94tp07', 'country_code': 'NZ', 'type': 'education', 'lineage': ['https://openalex.org/I154130895']}], 'countries': ['NZ'], 'is_corresponding': False, 'raw_author_name': 'Bridget Y. Lynne', 'raw_affiliation_strings': ['Department of Geology, University of Auckland, Private Bag 92019, Auckland, New Zealand'], 'affiliations': [{'raw_affiliation_string': 'Department of Geology, University of Auckland, Private Bag 92019, Auckland, New Zealand', 'institution_ids': ['https://openalex.org/I154130895']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5043522195', 'display_name': 'Mark A. Sephton', 'orcid': 'https://orcid.org/0000-0002-2190-5402'}, 'institutions': [{'id': 'https://openalex.org/I47508984', 'display_name': 'Imperial College London', 'ror': 'https://ror.org/041kmwe10', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I47508984']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Mark A. Sephton', 'raw_affiliation_strings': ['Impacts and Astromaterials Research Centre, Department of Earth Science and Engineering, South Kensington Campus, Imperial College, London SW7 2AZ, UK'], 'affiliations': [{'raw_affiliation_string': 'Impacts and Astromaterials Research Centre, Department of Earth Science and Engineering, South Kensington Campus, Imperial College, London SW7 2AZ, UK', 'institution_ids': ['https://openalex.org/I47508984']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5002193196', 'display_name': 'Vera M. Kolb', 'orcid': 'https://orcid.org/0000-0002-2081-5771'}, 'institutions': [{'id': 'https://openalex.org/I183437572', 'display_name': 'University of Wisconsin–Parkside', 'ror': 'https://ror.org/05s9f4d27', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I183437572']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Vera M. Kolb', 'raw_affiliation_strings': ['Department of Chemistry, University of Wisconsin-Parkside, Kenosha, Wisconsin 53141-2000, USA'], 'affiliations': [{'raw_affiliation_string': 'Department of Chemistry, University of Wisconsin-Parkside, Kenosha, Wisconsin 53141-2000, USA', 'institution_ids': ['https://openalex.org/I183437572']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5051978401', 'display_name': 'Carole C. Perry', 'orcid': 'https://orcid.org/0000-0003-1517-468X'}, 'institutions': [{'id': 'https://openalex.org/I52590639', 'display_name': 'Nottingham Trent University', 'ror': 'https://ror.org/04xyxjd90', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I52590639']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Carole C. Perry', 'raw_affiliation_strings': ['Chemistry Division, School of Biomedical Natural Sciences, Nottingham Trent University, Clifton Lane, Nottingham NG118NS, UK'], 'affiliations': [{'raw_affiliation_string': 'Chemistry Division, School of Biomedical Natural Sciences, Nottingham Trent University, Clifton Lane, Nottingham NG118NS, UK', 'institution_ids': ['https://openalex.org/I52590639']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5091302034', 'display_name': 'James T. Staley', 'orcid': 'https://orcid.org/0000-0003-2345-880X'}, 'institutions': [{'id': 'https://openalex.org/I201448701', 'display_name': 'University of Washington', 'ror': 'https://ror.org/00cvxb145', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I201448701']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'James T. Staley', 'raw_affiliation_strings': ['Department of Microbiology, School of Medicine, University of Washington, Seattle, Washington 98195-1310, USA'], 'affiliations': [{'raw_affiliation_string': 'Department of Microbiology, School of Medicine, University of Washington, Seattle, Washington 98195-1310, USA', 'institution_ids': ['https://openalex.org/I201448701']}]}], 'institution_assertions': [], 'countries_distinct_count': 3, 'institutions_distinct_count': 6, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 1, 'citation_normalized_percentile': {'value': 0.511417, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 61, 'max': 68}, 'biblio': {'volume': '34', 'issue': '7', 'first_page': '537', 'last_page': '537'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T13443', 'display_name': 'Mineralogy and Gemology Studies', 'score': 0.9983, 'subfield': {'id': 'https://openalex.org/subfields/1906', 'display_name': 'Geochemistry and Petrology'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T13443', 'display_name': 'Mineralogy and Gemology Studies', 'score': 0.9983, 'subfield': {'id': 'https://openalex.org/subfields/1906', 'display_name': 'Geochemistry and Petrology'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10001', 'display_name': 'Geological and Geochemical Analysis', 'score': 0.9781, 'subfield': {'id': 'https://openalex.org/subfields/1908', 'display_name': 'Geophysics'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11877', 'display_name': 'Iron oxide chemistry and applications', 'score': 0.9639, 'subfield': {'id': 'https://openalex.org/subfields/2105', 'display_name': 'Renewable Energy, Sustainability and the Environment'}, 'field': {'id': 'https://openalex.org/fields/21', 'display_name': 'Energy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/desert', 'display_name': 'Desert (philosophy)', 'score': 0.5075325}], 'concepts': [{'id': 'https://openalex.org/C2776130869', 'wikidata': 'https://www.wikidata.org/wiki/Q1361649', 'display_name': 'Desert (philosophy)', 'level': 2, 'score': 0.5075325}, {'id': 'https://openalex.org/C161191863', 'wikidata': 'https://www.wikidata.org/wiki/Q199655', 'display_name': 'Library science', 'level': 1, 'score': 0.47465068}, {'id': 'https://openalex.org/C52119013', 'wikidata': 'https://www.wikidata.org/wiki/Q50637', 'display_name': 'Art history', 'level': 1, 'score': 0.4452869}, {'id': 'https://openalex.org/C95457728', 'wikidata': 'https://www.wikidata.org/wiki/Q309', 'display_name': 'History', 'level': 0, 'score': 0.40595576}, {'id': 'https://openalex.org/C166957645', 'wikidata': 'https://www.wikidata.org/wiki/Q23498', 'display_name': 'Archaeology', 'level': 1, 'score': 0.339114}, {'id': 'https://openalex.org/C17744445', 'wikidata': 'https://www.wikidata.org/wiki/Q36442', 'display_name': 'Political science', 'level': 0, 'score': 0.13008496}, {'id': 'https://openalex.org/C199539241', 'wikidata': 'https://www.wikidata.org/wiki/Q7748', 'display_name': 'Law', 'level': 1, 'score': 0.12742773}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.10070416}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1130/g22352a.1', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S56162041', 'display_name': 'Geology', 'issn_l': '0091-7613', 'issn': ['0091-7613', '1943-2682'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319845', 'host_organization_name': 'Geological Society of America', 'host_organization_lineage': ['https://openalex.org/P4310319845'], 'host_organization_lineage_names': ['Geological Society of America'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 19, 'referenced_works': ['https://openalex.org/W1970568797', 'https://openalex.org/W1976002167', 'https://openalex.org/W1977918947', 'https://openalex.org/W1982129609', 'https://openalex.org/W1997686100', 'https://openalex.org/W1997772382', 'https://openalex.org/W2025020270', 'https://openalex.org/W2046313650', 'https://openalex.org/W2056380135', 'https://openalex.org/W2057447671', 'https://openalex.org/W2076852250', 'https://openalex.org/W2088092896', 'https://openalex.org/W2088591746', 'https://openalex.org/W2108211322', 'https://openalex.org/W2110302823', 'https://openalex.org/W2131109144', 'https://openalex.org/W2137812165', 'https://openalex.org/W2156162469', 'https://openalex.org/W2728940590'], 'related_works': ['https://openalex.org/W4394954532', 'https://openalex.org/W4300110411', 'https://openalex.org/W4251533150', 'https://openalex.org/W4237787509', 'https://openalex.org/W3198882691', 'https://openalex.org/W2807379615', 'https://openalex.org/W2748952813', 'https://openalex.org/W2289254949', 'https://openalex.org/W2142525752', 'https://openalex.org/W1592798874'], 'abstract_inverted_index': {'Research': [0, 28, 102, 229, 275], 'Article|': [1], 'July': [2], '01,': [3], '2006': [4, 352, 356, 390, 394], 'Baking': [5, 441], 'black': [6, 442, 502], 'opal': [7, 443], 'in': [8, 16, 444, 452, 603], 'the': [9, 445, 542, 559, 591], 'desert': [10, 17, 446, 453, 585], 'sun:': [11, 447], 'The': [12, 368, 448], 'importance': [13, 449], 'of': [14, 31, 71, 74, 105, 137, 140, 166, 196, 199, 202, 232, 258, 261, 278, 296, 299, 311, 327, 330, 333, 342, 371, 450, 562, 580, 593], 'silica': [15, 451, 539, 543, 563, 588], 'varnish': [18, 534, 586], 'Randall': [19, 22, 223, 423], 'S.': [20, 23, 224, 424], 'Perry;': [21, 159], 'Perry': [24, 162, 225, 307], '1Impacts': [25, 226], 'and': [26, 34, 45, 100, 108, 220, 227, 235, 246, 273, 281, 516, 527, 535, 541, 566, 569, 574, 587, 590, 610], 'Astromaterials': [27, 101, 228, 274], 'Centre,': [29, 103, 230, 276], 'Department': [30, 104, 231, 277], 'Earth': [32, 106, 233, 279], 'Science': [33, 47, 107, 234, 248, 280], 'Engineering,': [35, 109, 236, 282], 'South': [36, 110, 237, 283], 'Kensington': [37, 111, 238, 284], 'Campus,': [38, 112, 239, 285], 'Imperial': [39, 113, 240, 286], 'College,': [40, 114, 241, 287], 'London': [41, 115, 242, 288], 'SW7': [42, 116, 243, 289], '2AZ,': [43, 117, 244, 290], 'UK,': [44, 245], 'Planetary': [46, 247], 'Institute,': [48, 249], 'Seattle,': [49, 204, 250, 335], 'Washington': [50, 205, 251, 336], '98115,': [51, 252], 'USA': [52, 145, 207, 253, 304, 338], 'Search': [53, 82, 119, 146, 178, 208, 420, 477, 484, 494, 496], 'for': [54, 83, 120, 147, 179, 209, 513, 517, 584], 'other': [55, 84, 121, 148, 180, 210], 'works': [56, 85, 122, 149, 181, 211], 'by': [57, 86, 123, 150, 182, 212], 'this': [58, 87, 124, 151, 183, 213, 619], 'author': [59, 88, 125, 152, 184, 214], 'on:': [60, 89, 126, 153, 185, 215], 'GSW': [61, 90, 127, 154, 186, 216], 'Google': [62, 91, 128, 155, 187, 217], 'Scholar': [63, 92, 129, 156, 188, 218], 'Bridget': [64, 67, 254, 426], 'Y.': [65, 68, 255, 427], 'Lynne;': [66], 'Lynne': [69, 256], '2Department': [70, 257], 'Geology,': [72, 259], 'University': [73, 139, 201, 260, 298, 332], 'Auckland,': [75, 79, 262, 266], 'Private': [76, 263], 'Bag': [77, 264], '92019,': [78, 265], 'New': [80, 267], 'Zealand': [81, 268], 'Mark': [93, 96, 269, 429], 'A.': [94, 97, 270, 430], 'Sephton;': [95], 'Sephton': [98, 271], '3Impacts': [99, 272], 'UK': [118, 177, 291, 322], 'Vera': [130, 133, 292, 432], 'M.': [131, 134, 293, 433], 'Kolb;': [132], 'Kolb': [135, 294], '4Department': [136, 295], 'Chemistry,': [138, 297], 'Wisconsin-Parkside,': [141, 300], 'Kenosha,': [142, 301], 'Wisconsin': [143, 302], '53141-2000,': [144, 303], 'Carole': [157, 160, 305, 435], 'C.': [158, 161, 306, 436], '5Chemistry': [163, 308], 'Division,': [164, 309], 'School': [165, 198, 310, 329], 'Biomedical': [167, 312], 'Natural': [168, 313], 'Sciences,': [169, 314], 'Nottingham': [170, 175, 315, 320], 'Trent': [171, 316], 'University,': [172, 317], 'Clifton': [173, 318], 'Lane,': [174, 319], 'NG118NS,': [176, 321], 'James': [189, 192, 323, 438], 'T.': [190, 193, 324, 439], 'Staley': [191, 194, 325], '6Department': [195, 326], 'Microbiology,': [197, 328], 'Medicine,': [200, 331], 'Washington,': [203, 334], '98195-1310,': [206, 337], 'Author': [219], 'Article': [221, 380], 'Information': [222], 'Publisher:': [339], 'Geological': [340, 369], 'Society': [341, 370], 'America': [343], 'Received:': [344, 349, 382, 387], '07': [345, 383], 'Nov': [346, 384], '2005': [347, 385], 'Revision': [348, 386], '08': [350, 388], 'Feb': [351, 355, 389, 393], 'Accepted:': [353, 391], '12': [354, 392], 'First': [357, 395], 'Online:': [358, 396], '09': [359, 397], 'Mar': [360, 398], '2017': [361, 399], 'Online': [362], 'Issn:': [363, 366], '1943-2682': [364], 'Print': [365], '0091-7613': [367], 'America,': [372], 'Inc.': [373], 'Geology': [374, 455], '(2006)': [375], '34': [376, 457], '(7):': [377, 458], '537–540.': [378, 459], 'https://doi.org/10.1130/G22352.1': [379, 461], 'history': [381], 'Cite': [400], 'View': [401], 'This': [402], 'Citation': [403, 406, 422], 'Add': [404], 'to': [405, 547, 618, 623], 'Manager': [407], 'Share': [408, 410], 'Icon': [409, 416], 'Facebook': [411], 'Twitter': [412], 'LinkedIn': [413], 'MailTo': [414], 'Tools': [415, 417], 'Get': [418], 'Permissions': [419], 'Site': [421], 'Perry,': [425, 437], 'Lynne,': [428], 'Sephton,': [431], 'Kolb,': [434], 'Staley;': [440], 'varnish.': [454], '2006;;': [456], 'doi:': [460], 'Download': [462], 'citation': [463], 'file:': [464], 'Ris': [465], '(Zotero)': [466], 'Refmanager': [467], 'EasyBib': [468], 'Bookends': [469], 'Mendeley': [470], 'Papers': [471], 'EndNote': [472], 'RefWorks': [473], 'BibTex': [474], 'toolbar': [475, 480], 'search': [476, 481, 482, 490], 'Dropdown': [478], 'Menu': [479], 'input': [483, 485], 'auto': [486], 'suggest': [487, 557], 'filter': [488], 'your': [489, 624], 'All': [491], 'ContentBy': [492], 'SocietyGeology': [493], 'Advanced': [495], 'Abstract': [497], 'Desert': [498], 'varnish,': [499], 'a': [500, 511, 577, 581], 'widespread': [501], 'manganese-rich': [503], 'rock': [504], 'coating,': [505], 'contains': [506], 'labile': [507], 'organic': [508, 594], 'compounds,': [509], 'but': [510], 'mechanism': [512, 583], 'its': [514, 570], 'formation': [515, 582], 'their': [518], 'preservation': [519], 'remains': [520], 'unproven.': [521], 'Using': [522], 'Raman': [523], 'spectroscopy,': [524], 'X-ray': [525], 'diffraction,': [526], 'scanning': [528], 'transmission': [529], 'electron': [530], 'microscopy,': [531], 'we': [532, 549], 'analyzed': [533], 'found': [536], 'amorphous': [537], 'hydrated': [538], '(opal)': [540], 'mineral': [544], 'moganite,': [545], 'similar': [546], 'findings': [548], 'have': [550, 616, 632], 'reported': [551], 'from': [552, 564, 596], 'siliceous': [553], 'hot-spring': [554], 'deposits.': [555], 'We': [556], 'that': [558], 'slow': [560], 'dissolution': [561], 'anhydrous': [565], 'hydrous': [567], 'minerals,': [568], 'subsequent': [571], 'gelling,': [572], 'condensation,': [573], 'hardening,': [575], 'provides': [576], 'simple': [578], 'explanation': [579], 'glazes': [589], 'incorporation': [592], 'material': [595], 'local': [597], 'environments.': [598], 'These': [599], 'chemical': [600], 'signatures,': [601], 'sequestered': [602], 'silica,': [604], 'provide': [605], 'valuable': [606], 'information': [607], 'about': [608], 'terrestrial': [609], 'extraterrestrial': [611], 'paleoenvironments.': [612], 'You': [613], 'do': [614], 'not': [615], 'access': [617], 'content,': [620], 'please': [621], 'speak': [622], 'institutional': [625], 'administrator': [626], 'if': [627], 'you': [628, 630], 'feel': [629], 'should': [631], 'access.': [633]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W4243001686', 'counts_by_year': [{'year': 2019, 'cited_by_count': 1}], 'updated_date': '2024-12-18T16:05:22.955340', 'created_date': '2022-05-12'}