Phase State Analysis Method and Application of Molybdenum in Soil Samples of Special Landscape Exploration in Heilongjiang Province

Jiang-hong GE; Ying-kai WANG; Xu ZHANG; Yan-mei GE

doi:10.15898/j.cnki.11-2131/td.201611100206

Rock and Mineral Analysis > 2019 > 38(2): 222-227. > DOI: 10.15898/j.cnki.11-2131/td.201611100206

Jiang-hong GE, Ying-kai WANG, Xu ZHANG, Yan-mei GE. Phase State Analysis Method and Application of Molybdenum in Soil Samples of Special Landscape Exploration in Heilongjiang Province[J]. Rock and Mineral Analysis, 2019, 38(2): 222-227. DOI: 10.15898/j.cnki.11-2131/td.201611100206

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Phase State Analysis Method and Application of Molybdenum in Soil Samples of Special Landscape Exploration in Heilongjiang Province

Institute of Geological and Mineral Testing in Heilongjiang Province, Haerbin 150036, China

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Received Date: November 10, 2016
Revised Date: July 26, 2018
Accepted Date: December 09, 2018
Published Date: February 28, 2019

Abstract

HIGHLIGHTS
(1) The probability of finding total element anomaly is not very high. It is helpful to study the physical phase and morphology of element to determine the possibility of total element anomaly.

(2) The phase analysis method of the molybdenum element of geochemical anomaly in Heilongjiang Province was established, and the analytical results of each phase were obtained by ICP-MS.

(3) The test was carried out using a chemical sample from a certain area of Heilongjiang Province. The results of phase state analysis of molybdenum agree with the metallogenic types of molybdenum deposits.

ABSTRACT

BACKGROUNDOver the years, the total anomaly analysis results of geochemical exploration have found that there are not many deposits. Under the conditions of epigenetic conditions, different elements have different migration and deposition laws and primitive occurrence states. The geochemical analysis gives the full analysis of the elements cannot accurately reflect the mineralization anomalies situation. Therefore, the existence form and existence state of the elements are crucial for judging whether it is a metallogenic anomaly.
OBJECTIVESThis paper establishes the phase analysis method of molybdenum in geochemical soil samples from the characteristics of Heilongjiang geological landscape.
METHODSThe phase states of molybdenum are divided into five phases:water extraction phase, weak organic binding phase, oxide binding phase, Fe-binding phase, and residue phase. The detection limits of molybdenum phases determined by ICP-MS are:water extraction phase 0.0011μg/g, weak organic binding phase 0.020μg/g, oxide binding phase 0.100μg/g, Fe-binding phase 0.100μg/g, the residue phase is 0.100μg/g.
RESULTSThe method was used to analyze the samples with molybdenum anomaly in a certain part of Heilongjiang Province. The results showed that molybdenum was mainly composed of Fe-binding phase, which belonged to the vein type and conformed to one of the types of molybdenum deposits.
CONCLUSIONSThe method improves the accuracy of prospecting using geochemical anomalies.
- chemical exploration of the soil,
- molybdenum,
- phase analysis,
- Inductively Coupled Plasma-Mass Spectrometry,
- mineralization anomalies

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Phase State Analysis Method and Application of Molybdenum in Soil Samples of Special Landscape Exploration in Heilongjiang Province

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