Geology
https://openalex.org/C127313418
https://www.wikidata.org/wiki/Q1069
Magmatism
https://openalex.org/C162973429
https://www.wikidata.org/wiki/Q1467769
Geochemistry
https://openalex.org/C17409809
https://www.wikidata.org/wiki/Q161764
Trace element
https://openalex.org/C34682378
https://www.wikidata.org/wiki/Q351792
Tectonics
https://openalex.org/C77928131
https://www.wikidata.org/wiki/Q193343
Lithosphere
https://openalex.org/C16942324
https://www.wikidata.org/wiki/Q83296
Archean
https://openalex.org/C149347711
https://www.wikidata.org/wiki/Q104168
Volcano
https://openalex.org/C120806208
https://www.wikidata.org/wiki/Q8072
Petrology
https://openalex.org/C5900021
https://www.wikidata.org/wiki/Q163082
Previous research: area investigated as the sentence subject
Xs have been studied extensively in vitro, using …
[INST] Please produce a sentence from the paper. The sentence should not mention the title of the paper, rather it be extracted from the Introducing Work section of the paper.
Please provide one singular full sentence from the paper that serves the function provided, using the example as guidance. Be specific, using relevant terminology from the paper.
Refrain from vague or generic statements. Finally produce a search query in the form of a question targeted towards the knowledge contained therein. 
You must output json with the structure of {'Sentence': sentence, 'Query': query}.
Field: "Geochemistry".
Paper: "Orogenic gold deposits: A proposed classification in the context of their crustal distribution and relationship to other gold deposit types"
Function: "Previous research: area investigated as the sentence subject".
Example Sentence: "Xs have been studied extensively in vitro, using …". [/INST]