Item talk:Q272278
From geokb
{
"USGS Publications Warehouse": {
"@context": "https://schema.org",
"@type": "Article",
"additionalType": "Journal Article",
"name": "Age of supergene oxidation and enrichment in the Chilean porphyry copper province",
"identifier": [
{
"@type": "PropertyValue",
"propertyID": "USGS Publications Warehouse IndexID",
"value": "70018070",
"url": "https://pubs.usgs.gov/publication/70018070"
},
{
"@type": "PropertyValue",
"propertyID": "USGS Publications Warehouse Internal ID",
"value": 70018070
},
{
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.2113/gsecongeo.91.1.164",
"url": "https://doi.org/10.2113/gsecongeo.91.1.164"
},
{
"@type": "PropertyValue",
"propertyID": "ISSN",
"value": "03610128"
}
],
"journal": {
"@type": "Periodical",
"name": "Economic Geology",
"volumeNumber": "91",
"issueNumber": "1"
},
"inLanguage": "en",
"isPartOf": [
{
"@type": "CreativeWorkSeries",
"name": "Economic Geology"
}
],
"datePublished": "1996",
"dateModified": "2024-01-03",
"abstract": "Twenty-five samples of supergene alunite collected from deeply developed supergene profiles in porphyry copper deposits and prospects between latitudes 20 degrees and 27 degrees S in northern Chile yield K/Ar ages ranging from about 34 to 14 Ma. Therefore supergene oxidation and enrichment processes were active from the early Oligocene to the middle Miocene, a minimum of 20 m.y. Supergene activity at individual deposits lasted for at least 0.4 to 6.2 m.y. The early Oligocene supergene activity affected deposits in the Paleocene porphyry copper belt, whereas early and middle Miocene supergene processes are documented in the Early Cretaceous, Paleocene, and late Eocene to early Oligocene porphyry, copper belts. Middle Miocene oxidation also affected the oldest epithermal gold-silver deposits in the Maricunga belt farther east. Supergene activity commenced no less than 11 m.y. after generation of each porphyry copper deposit because of the time required to unroof the copper-bearing parts of the system. Supergene activity throughout northern Chile ceased at approximately 14 Ma. The geologic features of deposits and prospects and their morphotectonic positions, present latitudes, and present elevations display no obvious correlations with the supergene chronology. Exploration for major cumulative enrichment blankets should not be carried out either beneath thick sequences of piedmont gravels (+ or - ignimbrites) of Oligocene through middle Miocene age unless their accumulation is demonstrably late in the documented history of supergene activity, or in porphyry copper provinces, such as those of central Chile and northwestern Argentina, which formed after approximately 14 Ma. The uplift responsible for efficient cumulative copper enrichment is difficult to correlate convincingly with the brief pulses of compressive tectonism postulated for northern Chile and contiguous areas unless their effects were much more prolonged. Intensifying aridity is confirmed as the likely reason for the cessation of supergene activity in northern Chile, and tectonic uplift was its most probable cause. However, more fundamental global controls producing a period of chemical weathering followed by worldwide dessication also may have played a role.",
"description": "16 p.",
"publisher": {
"@type": "Organization",
"name": "Society of Economic Geologists"
},
"author": [
{
"@type": "Person",
"name": "McKee, E. H.",
"givenName": "E. H.",
"familyName": "McKee"
},
{
"@type": "Person",
"name": "Sillitoe, R.H.",
"givenName": "R.H.",
"familyName": "Sillitoe"
}
]
},
"OpenAlex": {
"_id": "https://openalex.org/W1984005435",
"abstract_inverted_index": {
"Twenty-five": [
0
],
"samples": [
1
],
"of": [
2,
56,
134,
140,
149,
165,
200,
207,
223,
234,
262,
290,
312
],
"supergene": [
3,
9,
39,
75,
90,
184,
224,
291
],
"alunite": [
4
],
"collected": [
5
],
"from": [
6,
32,
46
],
"deeply": [
7
],
"developed": [
8
],
"profiles": [
10
],
"in": [
11,
25,
79,
94,
118,
219,
227,
293
],
"porphyry": [
12,
82,
136,
228
],
"copper": [
13,
83,
106,
137,
229,
251
],
"deposits": [
14,
63,
78,
117,
166
],
"and": [
15,
21,
41,
87,
99,
167,
169,
175,
237,
269,
296
],
"prospects": [
16,
168
],
"between": [
17
],
"latitudes": [
18
],
"20": [
19,
57
],
"degrees": [
20,
23
],
"27": [
22
],
"S": [
24
],
"northern": [
26,
155,
267,
294
],
"Chile": [
27,
156,
236,
268
],
"yield": [
28
],
"K/Ar": [
29
],
"ages": [
30
],
"ranging": [
31
],
"about": [
33
],
"34": [
34
],
"to": [
35,
50,
69,
102,
144,
255
],
"14": [
36,
160,
244
],
"Ma.": [
37,
161
],
"Therefore": [
38
],
"oxidation": [
40,
110
],
"enrichment": [
42,
189,
252
],
"processes": [
43,
91
],
"were": [
44,
275
],
"active": [
45
],
"the": [
47,
51,
80,
95,
113,
119,
141,
146,
150,
183,
220,
259,
284,
288
],
"early": [
48,
73,
86,
103
],
"Oligocene": [
49,
74,
104,
208
],
"middle": [
52,
88,
210
],
"Miocene,": [
53
],
"a": [
54,
310,
323
],
"minimum": [
55
],
"m.y.": [
58,
71,
131
],
"Supergene": [
59,
124,
152
],
"activity": [
60,
76,
125,
153,
292
],
"at": [
61,
66,
158
],
"individual": [
62
],
"lasted": [
64
],
"for": [
65,
186,
248,
266,
287
],
"least": [
67
],
"0.4": [
68
],
"6.2": [
70
],
"The": [
72,
162
],
"affected": [
77,
112
],
"Paleocene": [
81
],
"belt,": [
84
],
"whereas": [
85
],
"Miocene": [
89,
109,
211
],
"are": [
92
],
"documented": [
93,
221
],
"Early": [
96
],
"Cretaceous,": [
97
],
"Paleocene,": [
98
],
"late": [
100,
218
],
"Eocene": [
101
],
"porphyry,": [
105
],
"belts.": [
107
],
"Middle": [
108
],
"also": [
111,
319
],
"oldest": [
114
],
"epithermal": [
115
],
"gold-silver": [
116
],
"Maricunga": [
120
],
"belt": [
121
],
"farther": [
122
],
"east.": [
123
],
"commenced": [
126
],
"no": [
127,
179
],
"less": [
128
],
"than": [
129
],
"11": [
130
],
"after": [
132,
242
],
"generation": [
133
],
"each": [
135
],
"deposit": [
138
],
"because": [
139
],
"time": [
142
],
"required": [
143
],
"unroof": [
145
],
"copper-bearing": [
147
],
"parts": [
148
],
"system.": [
151
],
"throughout": [
154
],
"ceased": [
157
],
"approximately": [
159,
243
],
"geologic": [
163
],
"features": [
164
],
"their": [
170,
214,
273
],
"morphotectonic": [
171
],
"positions,": [
172
],
"present": [
173,
176
],
"latitudes,": [
174
],
"elevations": [
177
],
"display": [
178
],
"obvious": [
180
],
"correlations": [
181
],
"with": [
182,
258
],
"chronology.Exploration": [
185
],
"major": [
187
],
"cumulative": [
188,
250
],
"blankets": [
190
],
"should": [
191
],
"not": [
192
],
"be": [
193
],
"carried": [
194
],
"out": [
195
],
"either": [
196
],
"beneath": [
197
],
"thick": [
198
],
"sequences": [
199
],
"piedmont": [
201
],
"gravels": [
202
],
"(+": [
203
],
"or": [
204,
226
],
"-": [
205
],
"ignimbrites)": [
206
],
"through": [
209
],
"age": [
212
],
"unless": [
213,
272
],
"accumulation": [
215
],
"is": [
216,
253,
281
],
"demonstrably": [
217
],
"history": [
222
],
"activity,": [
225
],
"provinces,": [
230
],
"such": [
231
],
"as": [
232,
283
],
"those": [
233
],
"central": [
235
],
"northwestern": [
238
],
"Argentina,": [
239
],
"which": [
240
],
"formed": [
241
],
"Ma.The": [
245
],
"uplift": [
246,
298
],
"responsible": [
247
],
"efficient": [
249
],
"difficult": [
254
],
"correlate": [
256
],
"convincingly": [
257
],
"brief": [
260
],
"pulses": [
261
],
"compressive": [
263
],
"tectonism": [
264
],
"postulated": [
265
],
"contiguous": [
270
],
"areas": [
271
],
"effects": [
274
],
"much": [
276
],
"more": [
277,
305
],
"prolonged.": [
278
],
"Intensifying": [
279
],
"aridity": [
280
],
"confirmed": [
282
],
"likely": [
285
],
"reason": [
286
],
"cessation": [
289
],
"Chile,": [
295
],
"tectonic": [
297
],
"was": [
299
],
"its": [
300
],
"most": [
301
],
"probable": [
302
],
"cause.": [
303
],
"However,": [
304
],
"fundamental": [
306
],
"global": [
307
],
"controls": [
308
],
"producing": [
309
],
"period": [
311
],
"chemical": [
313
],
"weathering": [
314
],
"followed": [
315
],
"by": [
316
],
"worldwide": [
317
],
"dessication": [
318
],
"may": [
320
],
"have": [
321
],
"played": [
322
],
"role.": [
324
]
},
"apc_list": null,
"apc_paid": null,
"authorships": [
{
"author_position": "first",
"author": {
"id": "https://openalex.org/A5031975280",
"display_name": "Richard H. Sillitoe",
"orcid": "https://orcid.org/0000-0002-5501-3859"
},
"institutions": [
{
"id": "https://openalex.org/I4210091208",
"display_name": "West Park Hospital",
"ror": "https://ror.org/00f574b02",
"country_code": "GB",
"type": "healthcare",
"lineage": [
"https://openalex.org/I4210091208",
"https://openalex.org/I4210158787"
]
}
],
"countries": [
"GB"
],
"is_corresponding": false,
"raw_author_name": "Richard H. Sillitoe",
"raw_affiliation_strings": [
"27 West Hill Park, London, United Kingdom"
],
"affiliations": [
{
"raw_affiliation_string": "27 West Hill Park, London, United Kingdom",
"institution_ids": [
"https://openalex.org/I4210091208"
]
}
]
},
{
"author_position": "last",
"author": {
"id": "https://openalex.org/A5080978349",
"display_name": "Edwin H. McKee",
"orcid": null
},
"institutions": [
{
"id": "https://openalex.org/I1286329397",
"display_name": "United States Geological Survey",
"ror": "https://ror.org/035a68863",
"country_code": "US",
"type": "government",
"lineage": [
"https://openalex.org/I1286329397",
"https://openalex.org/I1335927249"
]
}
],
"countries": [
"US"
],
"is_corresponding": false,
"raw_author_name": "Edwin H. McKee",
"raw_affiliation_strings": [
"U.S. Geological Survey, United States"
],
"affiliations": [
{
"raw_affiliation_string": "U.S. Geological Survey, United States",
"institution_ids": [
"https://openalex.org/I1286329397"
]
}
]
}
],
"best_oa_location": null,
"biblio": {
"volume": "91",
"issue": "1",
"first_page": "164",
"last_page": "179"
},
"cited_by_api_url": "https://api.openalex.org/works?filter=cites:W1984005435",
"cited_by_count": 176,
"cited_by_percentile_year": {
"min": 98,
"max": 99
},
"concepts": [
{
"id": "https://openalex.org/c179319051",
"wikidata": "https://www.wikidata.org/wiki/Q574109",
"display_name": "Porphyry copper deposit",
"level": 4,
"score": 0.85959125,
"qid": null
},
{
"id": "https://openalex.org/c102198088",
"wikidata": "https://www.wikidata.org/wiki/Q3504655",
"display_name": "Supergene (geology)",
"level": 3,
"score": 0.8524791,
"qid": null
},
{
"id": "https://openalex.org/c544778455",
"wikidata": "https://www.wikidata.org/wiki/Q753",
"display_name": "Copper",
"level": 2,
"score": 0.63870984,
"qid": "Q315"
},
{
"id": "https://openalex.org/c17409809",
"wikidata": "https://www.wikidata.org/wiki/Q161764",
"display_name": "Geochemistry",
"level": 1,
"score": 0.4448971,
"qid": "Q158980"
},
{
"id": "https://openalex.org/c127313418",
"wikidata": "https://www.wikidata.org/wiki/Q1069",
"display_name": "Geology",
"level": 0,
"score": 0.40074867,
"qid": "Q158984"
},
{
"id": "https://openalex.org/c205649164",
"wikidata": "https://www.wikidata.org/wiki/Q1071",
"display_name": "Geography",
"level": 0,
"score": 0.32125306,
"qid": "Q158983"
},
{
"id": "https://openalex.org/c191897082",
"wikidata": "https://www.wikidata.org/wiki/Q11467",
"display_name": "Metallurgy",
"level": 1,
"score": 0.24423394,
"qid": "Q226271"
},
{
"id": "https://openalex.org/c151730666",
"wikidata": "https://www.wikidata.org/wiki/Q7205",
"display_name": "Paleontology",
"level": 1,
"score": 0.1451273,
"qid": "Q159017"
},
{
"id": "https://openalex.org/c192562407",
"wikidata": "https://www.wikidata.org/wiki/Q228736",
"display_name": "Materials science",
"level": 0,
"score": 0.13136744,
"qid": "Q166092"
},
{
"id": "https://openalex.org/c156622251",
"wikidata": "https://www.wikidata.org/wiki/Q1036221",
"display_name": "Hydrothermal circulation",
"level": 2,
"score": 0.103191346,
"qid": null
},
{
"id": "https://openalex.org/c2776152364",
"wikidata": "https://www.wikidata.org/wiki/Q1822828",
"display_name": "Fluid inclusions",
"level": 3,
"score": 0.045475215,
"qid": null
},
{
"id": "https://openalex.org/c40724407",
"wikidata": "https://www.wikidata.org/wiki/Q179177",
"display_name": "Weathering",
"level": 2,
"score": 0.0,
"qid": null
}
],
"corresponding_author_ids": [],
"corresponding_institution_ids": [],
"countries_distinct_count": 2,
"counts_by_year": [
{
"year": 2024,
"cited_by_count": 3
},
{
"year": 2023,
"cited_by_count": 3
},
{
"year": 2022,
"cited_by_count": 2
},
{
"year": 2021,
"cited_by_count": 12
},
{
"year": 2020,
"cited_by_count": 7
},
{
"year": 2019,
"cited_by_count": 9
},
{
"year": 2018,
"cited_by_count": 8
},
{
"year": 2017,
"cited_by_count": 9
},
{
"year": 2016,
"cited_by_count": 10
},
{
"year": 2015,
"cited_by_count": 6
},
{
"year": 2014,
"cited_by_count": 2
},
{
"year": 2013,
"cited_by_count": 5
},
{
"year": 2012,
"cited_by_count": 7
}
],
"created_date": "2016-06-24",
"datasets": [],
"display_name": "Age of supergene oxidation and enrichment in the Chilean porphyry copper province",
"doi": "https://doi.org/10.2113/gsecongeo.91.1.164",
"fwci": 2.719,
"grants": [],
"has_fulltext": false,
"id": "https://openalex.org/W1984005435",
"ids": {
"openalex": "https://openalex.org/W1984005435",
"doi": "https://doi.org/10.2113/gsecongeo.91.1.164",
"mag": "1984005435"
},
"indexed_in": [
"crossref"
],
"institutions_distinct_count": 2,
"is_paratext": false,
"is_retracted": false,
"keywords": [
{
"id": "https://openalex.org/keywords/mineral-prospectivity",
"display_name": "Mineral Prospectivity",
"score": 0.465437
}
],
"language": "en",
"locations": [
{
"is_oa": false,
"landing_page_url": "https://doi.org/10.2113/gsecongeo.91.1.164",
"pdf_url": null,
"source": {
"id": "https://openalex.org/S4210182989",
"display_name": "Economic Geology",
"issn_l": "0361-0128",
"issn": [
"0361-0128",
"1554-0774"
],
"is_oa": false,
"is_in_doaj": false,
"is_core": true,
"host_organization": null,
"host_organization_name": null,
"host_organization_lineage": [],
"host_organization_lineage_names": [],
"type": "journal"
},
"license": null,
"license_id": null,
"version": null,
"is_accepted": false,
"is_published": false
}
],
"locations_count": 1,
"mesh": [],
"ngrams_url": "https://api.openalex.org/works/W1984005435/ngrams",
"open_access": {
"is_oa": false,
"oa_status": "closed",
"oa_url": null,
"any_repository_has_fulltext": false
},
"primary_location": {
"is_oa": false,
"landing_page_url": "https://doi.org/10.2113/gsecongeo.91.1.164",
"pdf_url": null,
"source": {
"id": "https://openalex.org/S4210182989",
"display_name": "Economic Geology",
"issn_l": "0361-0128",
"issn": [
"0361-0128",
"1554-0774"
],
"is_oa": false,
"is_in_doaj": false,
"is_core": true,
"host_organization": null,
"host_organization_name": null,
"host_organization_lineage": [],
"host_organization_lineage_names": [],
"type": "journal"
},
"license": null,
"license_id": null,
"version": null,
"is_accepted": false,
"is_published": false
},
"primary_topic": {
"id": "https://openalex.org/T12157",
"display_name": "Machine Learning for Mineral Prospectivity Mapping",
"score": 0.9915,
"subfield": {
"id": "https://openalex.org/subfields/1702",
"display_name": "Artificial Intelligence"
},
"field": {
"id": "https://openalex.org/fields/17",
"display_name": "Computer Science"
},
"domain": {
"id": "https://openalex.org/domains/3",
"display_name": "Physical Sciences"
}
},
"publication_date": "1996-02-01",
"publication_year": 1996,
"referenced_works": [],
"referenced_works_count": 0,
"related_works": [
"https://openalex.org/W48471695",
"https://openalex.org/W3210056049",
"https://openalex.org/W3115564060",
"https://openalex.org/W3092087325",
"https://openalex.org/W2286986805",
"https://openalex.org/W2113712896",
"https://openalex.org/W2089629932",
"https://openalex.org/W2027761488",
"https://openalex.org/W1984005435",
"https://openalex.org/W130433998"
],
"sustainable_development_goals": [
{
"id": "https://metadata.un.org/sdg/14",
"display_name": "Life below water",
"score": 0.77
}
],
"title": "Age of supergene oxidation and enrichment in the Chilean porphyry copper province",
"topics": [
{
"id": "https://openalex.org/T12157",
"display_name": "Machine Learning for Mineral Prospectivity Mapping",
"score": 0.9915,
"subfield": {
"id": "https://openalex.org/subfields/1702",
"display_name": "Artificial Intelligence"
},
"field": {
"id": "https://openalex.org/fields/17",
"display_name": "Computer Science"
},
"domain": {
"id": "https://openalex.org/domains/3",
"display_name": "Physical Sciences"
}
},
{
"id": "https://openalex.org/T10001",
"display_name": "Tectonic and Geochronological Evolution of Orogens",
"score": 0.9895,
"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/T11740",
"display_name": "Geochemistry of Manganese Oxides in Sedimentary Environments",
"score": 0.9427,
"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"
}
}
],
"type": "article",
"type_crossref": "journal-article",
"updated_date": "2024-08-05T19:22:19.748868",
"versions": [],
"qid": null
}
}
