This paper deals with the high\|K, potassic dike rocks in two types of gold ore fields at Linglong and Dayigezhuang, Northwest Jiaodong. The rocks can be divided into three types, i.e., (1) lamprophyre, (2) andesite p...This paper deals with the high\|K, potassic dike rocks in two types of gold ore fields at Linglong and Dayigezhuang, Northwest Jiaodong. The rocks can be divided into three types, i.e., (1) lamprophyre, (2) andesite porphyrite, and (3) dacite porphyrite, based on their geological occurrence and space\|time relationship with gold mineralization. These rocks were the products of early, synchronous and late mineralization, respectively. Element geochemistry shows that variations in chemical composition of major oxides follow the general rules of magmatic fractional crystallization. The fractional crystallization of mineral phases of augite in the early stage (namely in the lamprophyre stage) and hornblende and plagioclase in the late stage (namely from the andesite\|porphyrite to dacite porphyrite stage) controlled the magma evolution. The rocks are enriched in alkali and have higher K\-2O and lower TiO\-2 contents, as well as strongly enriched in large ion lithophile elements such as Ba, Sr and Rb, and LREE but strongly depleted in transition elements such as Cr and Ni. Rb is depleted relative to Sr and Ba, and Rb/Sr ratios are low. Volatile constituents are abundant. These characteristics indicate that the initial magma originated from the metamorphic subduction ocean\|crust that had been intensively contaminated by crustal materials, and retrogressive metamorphism is characterized by low\|degree partial melting during back\|arc spreading. Varying degrees of partial melting and different emplacement environments may be the main causes for the evolution of the rocks and mineralization in different degrees in the two gold ore fields at Linglong and Dayigezhuang, Shandong.展开更多
20110546 Chen Chuanfang(Southeastern Geology Party of Fujian Province,Quanzhou 362021,China)Primary Influencing Factors of Mine Drainage in the Karst Area of the Pantian Iron Minefield,Fujian Province(Geology of Fujia...20110546 Chen Chuanfang(Southeastern Geology Party of Fujian Province,Quanzhou 362021,China)Primary Influencing Factors of Mine Drainage in the Karst Area of the Pantian Iron Minefield,Fujian Province(Geology of Fujian,ISSN1001-3970,CN35-1080/P,29(1),2010,p.42-45,1 illus.)Key words:mine drainage,Fujian Province The Pantian marble and iron mining area in Anxi County has the mixture展开更多
NFC will support Daye Nonferrous Metals Co. Ltd. (DNC) to grow into a first-class global copper enterprise with annual sales revenue of more than RMB 100 billion as soon as possible.
Invited by the Japan-China Friendship Center(JCFC),the 17th Chinese educators’ delegation sent by the China-Japan Friendship Association (CJFA) paid a visit to Tokyo,Osaka, Kyoto and Ibaraki Prefecture from November ...Invited by the Japan-China Friendship Center(JCFC),the 17th Chinese educators’ delegation sent by the China-Japan Friendship Association (CJFA) paid a visit to Tokyo,Osaka, Kyoto and Ibaraki Prefecture from November 11 to 18,2012.The 25 members were headmasters and展开更多
The construction of a large-scale copper foilproject recently started in the High-Tech De-velopment Zone of Nanchang,the capital ofJiangxi Province.This new copper foil factory,with a designed annual production capaci...The construction of a large-scale copper foilproject recently started in the High-Tech De-velopment Zone of Nanchang,the capital ofJiangxi Province.This new copper foil factory,with a designed annual production capacity of6,000 tons of high-grade copper foil,is a jointventure project between Jiangxi Copper Group,the No.1 copper producer in China,and YatesInc.,a leading US copper product company andthe world’s first electrical circuit board maker.展开更多
On a sunny day in early summer,about 320 vips including 100from 19 French-speaking African countries gathered in Jinan,Shandong Province for the Second Dialogue between Chinese and African Governors and Mayors.The a...On a sunny day in early summer,about 320 vips including 100from 19 French-speaking African countries gathered in Jinan,Shandong Province for the Second Dialogue between Chinese and African Governors and Mayors.The aim was to explore cooperation between Chinese and African local governments and展开更多
An important cause for the recent adjustment ofpower rates in China is to contain the growth ofhigh-energy-consumption industries by impos-ing differentiated power rates.Therefore,as thefirst of six high-energy-consum...An important cause for the recent adjustment ofpower rates in China is to contain the growth ofhigh-energy-consumption industries by impos-ing differentiated power rates.Therefore,as thefirst of six high-energy-consumption industries,the primary aluminum industry has receivedspecial attention.Based on the complicatedplan on adjustment of power rates currentlyavailable,it is expected that approximately800,000 tons of self-baking pot production ca-展开更多
The short supply of alumina in China recently has led to a rush for more investment in alumina projects. In order to control the blind expansion of the alumina production scale, the National Development and Reform Com...The short supply of alumina in China recently has led to a rush for more investment in alumina projects. In order to control the blind expansion of the alumina production scale, the National Development and Reform Commission (NDRC) recently issued a circular aimed at standardizing the development of alumina projects.展开更多
With impacts from international economicconditions,the demand for potash salts andpotash fertilizers in China is flat and evensomewhat slack this year.The mainstream price of potash delivered to users has stayedaround...With impacts from international economicconditions,the demand for potash salts andpotash fertilizers in China is flat and evensomewhat slack this year.The mainstream price of potash delivered to users has stayedaround RMB2 500 per ton.In 2009,the soft market for compoundfertilizers and the low operating rate ofcompound fertilizer producers in China directlycaused the slack demand for potashfertilizers.In 2009 the highest price forpotassium chloride appeared in March.展开更多
With the rapid growth of the economy,the dyeing and printing sector inChina developed considerably in2006.Highlights of the year include arapid increase of output levels,con-siderable growth of profits,a reduc-tion of...With the rapid growth of the economy,the dyeing and printing sector inChina developed considerably in2006.Highlights of the year include arapid increase of output levels,con-siderable growth of profits,a reduc-tion of imports and an expansion ofexports.展开更多
ChemChina Group Corporation,set up in 2004 by merging by China National Bluestar (Group) Corporation and China Haohua Chemical Industrial(Group) Corporation together,has been struggling for the fifth larg-est state-ow...ChemChina Group Corporation,set up in 2004 by merging by China National Bluestar (Group) Corporation and China Haohua Chemical Industrial(Group) Corporation together,has been struggling for the fifth larg-est state-owned petrochemical group of China.In 2006 it achieved a total revenue展开更多
With the constant growth of demand for agricultural products,China’s consumption of chemical fertilizers keeps increasing.The effective utilization rate of chemical fertil-izer
The export price of vitamin B<sub>5</sub> in Chinahas increased constantly in 2007.Ac-cording to the analysis made byexperts,the demand of vitamin B<sub>5</sub> hasnot grown greatly.The main re...The export price of vitamin B<sub>5</sub> in Chinahas increased constantly in 2007.Ac-cording to the analysis made byexperts,the demand of vitamin B<sub>5</sub> hasnot grown greatly.The main reason forthe price rise is the change of the sup-ply mode.Such a price level can bemaintained for a certain period of time.展开更多
文摘This paper deals with the high\|K, potassic dike rocks in two types of gold ore fields at Linglong and Dayigezhuang, Northwest Jiaodong. The rocks can be divided into three types, i.e., (1) lamprophyre, (2) andesite porphyrite, and (3) dacite porphyrite, based on their geological occurrence and space\|time relationship with gold mineralization. These rocks were the products of early, synchronous and late mineralization, respectively. Element geochemistry shows that variations in chemical composition of major oxides follow the general rules of magmatic fractional crystallization. The fractional crystallization of mineral phases of augite in the early stage (namely in the lamprophyre stage) and hornblende and plagioclase in the late stage (namely from the andesite\|porphyrite to dacite porphyrite stage) controlled the magma evolution. The rocks are enriched in alkali and have higher K\-2O and lower TiO\-2 contents, as well as strongly enriched in large ion lithophile elements such as Ba, Sr and Rb, and LREE but strongly depleted in transition elements such as Cr and Ni. Rb is depleted relative to Sr and Ba, and Rb/Sr ratios are low. Volatile constituents are abundant. These characteristics indicate that the initial magma originated from the metamorphic subduction ocean\|crust that had been intensively contaminated by crustal materials, and retrogressive metamorphism is characterized by low\|degree partial melting during back\|arc spreading. Varying degrees of partial melting and different emplacement environments may be the main causes for the evolution of the rocks and mineralization in different degrees in the two gold ore fields at Linglong and Dayigezhuang, Shandong.
文摘20110546 Chen Chuanfang(Southeastern Geology Party of Fujian Province,Quanzhou 362021,China)Primary Influencing Factors of Mine Drainage in the Karst Area of the Pantian Iron Minefield,Fujian Province(Geology of Fujian,ISSN1001-3970,CN35-1080/P,29(1),2010,p.42-45,1 illus.)Key words:mine drainage,Fujian Province The Pantian marble and iron mining area in Anxi County has the mixture
文摘NFC will support Daye Nonferrous Metals Co. Ltd. (DNC) to grow into a first-class global copper enterprise with annual sales revenue of more than RMB 100 billion as soon as possible.
文摘Invited by the Japan-China Friendship Center(JCFC),the 17th Chinese educators’ delegation sent by the China-Japan Friendship Association (CJFA) paid a visit to Tokyo,Osaka, Kyoto and Ibaraki Prefecture from November 11 to 18,2012.The 25 members were headmasters and
文摘The construction of a large-scale copper foilproject recently started in the High-Tech De-velopment Zone of Nanchang,the capital ofJiangxi Province.This new copper foil factory,with a designed annual production capacity of6,000 tons of high-grade copper foil,is a jointventure project between Jiangxi Copper Group,the No.1 copper producer in China,and YatesInc.,a leading US copper product company andthe world’s first electrical circuit board maker.
文摘On a sunny day in early summer,about 320 vips including 100from 19 French-speaking African countries gathered in Jinan,Shandong Province for the Second Dialogue between Chinese and African Governors and Mayors.The aim was to explore cooperation between Chinese and African local governments and
文摘An important cause for the recent adjustment ofpower rates in China is to contain the growth ofhigh-energy-consumption industries by impos-ing differentiated power rates.Therefore,as thefirst of six high-energy-consumption industries,the primary aluminum industry has receivedspecial attention.Based on the complicatedplan on adjustment of power rates currentlyavailable,it is expected that approximately800,000 tons of self-baking pot production ca-
文摘The short supply of alumina in China recently has led to a rush for more investment in alumina projects. In order to control the blind expansion of the alumina production scale, the National Development and Reform Commission (NDRC) recently issued a circular aimed at standardizing the development of alumina projects.
文摘With impacts from international economicconditions,the demand for potash salts andpotash fertilizers in China is flat and evensomewhat slack this year.The mainstream price of potash delivered to users has stayedaround RMB2 500 per ton.In 2009,the soft market for compoundfertilizers and the low operating rate ofcompound fertilizer producers in China directlycaused the slack demand for potashfertilizers.In 2009 the highest price forpotassium chloride appeared in March.
文摘With the rapid growth of the economy,the dyeing and printing sector inChina developed considerably in2006.Highlights of the year include arapid increase of output levels,con-siderable growth of profits,a reduc-tion of imports and an expansion ofexports.
文摘ChemChina Group Corporation,set up in 2004 by merging by China National Bluestar (Group) Corporation and China Haohua Chemical Industrial(Group) Corporation together,has been struggling for the fifth larg-est state-owned petrochemical group of China.In 2006 it achieved a total revenue
文摘With the constant growth of demand for agricultural products,China’s consumption of chemical fertilizers keeps increasing.The effective utilization rate of chemical fertil-izer
文摘The export price of vitamin B<sub>5</sub> in Chinahas increased constantly in 2007.Ac-cording to the analysis made byexperts,the demand of vitamin B<sub>5</sub> hasnot grown greatly.The main reason forthe price rise is the change of the sup-ply mode.Such a price level can bemaintained for a certain period of time.
