scholarly journals Survey yields data on unique metamorphic rock complex in China

Eos ◽  
1998 ◽  
Vol 79 (36) ◽  
pp. 429-429 ◽  
Author(s):  
A. Schulze ◽  
M. Jiang ◽  
T. Ryberg ◽  
R. Gao
Keyword(s):  
Metamorphic Rock ◽  
Rock Complex

The Application of Geological Radar in Forecasting the Adverse Geological in Metamorphic Rock Area Tunnel Construction

2012 ◽  
Vol 531 ◽  
pp. 543-546
Author(s):  
Jiang Tao Xia ◽  
Cheng Zhong Yang ◽  
Shu Fang Wang
Keyword(s):  
Moisture Content ◽  
Metamorphic Rock ◽  
Water Status ◽  
Tunnel Construction ◽  
Construction Process ◽  
Tunnel Face ◽  
Geological Phenomenon ◽  
Zone Water ◽  
Bedding Joint

Accurately surveying out the fault, facture zone, water status and other bad geological phenomenon is the key problems for safety and quality in tunnel construction. Based on the different dielectric electrical differences in characteristics, applying geological radar detected the adverse geological in front of the tunnel face and analyzed. The results show the rock in front of tunnel face is broken, the bedding joint is developed, and there is jointed intensive moisture content with the local rich water. In construction process, the support should be strengthened, excavation method should be adjusted)

The Accumulation Rules of Budate Burial Hill Hydrocarbon Reservoir of Suderte Oilfield in Hailar Basin

2015 ◽  
Vol 733 ◽  
pp. 140-143
Author(s):  
Jin Hang Cai
Keyword(s):  
Source Rock ◽  
Large Scale ◽  
Metamorphic Rock ◽  
Fault System ◽  
Migration Ability ◽  
Accumulation Pattern ◽  
Hydrocarbon Reservoir ◽  
Oil Storage ◽  
Hailar Basin ◽  
Unconformity Surface

Metamorphic rock burial hill reservoir of Beier rift in Hailaer Basin, with large scale reservoir and high output has complex fault system. The fault through going direction roughly is NEE direction, and has wide fault section and lateral quickly changed fault displacement. Metamorphic rock reservoir can be divided into the vertical weathered fracture zone, crack and dissolved pores and caves development belt and tight zone. Accumulation is controlled by hydrocarbon ability of source rock, contacting relationship of source rock and reservoir, oil storage ability of reservoir, and vertical and lateral hydrocarbon migration ability of fault and unconformity surface. And formed top surface weathering crust accumulation pattern which the hydrocarbon migrated laterally along the unconformity surface, and interior reservoir pattern of crack broken zone accumulation which hydrocarbon migrated vertically along fault.

Organic C and nutrients in surface soils from some primary rainforests, derived grasslands and secondary rainforests on the Atherton Tableland in North East Queensland

Soil Research ◽  
1993 ◽  
Vol 31 (3) ◽  
pp. 343 ◽  
Author(s):  
J Maggs ◽  
B Hewett
Keyword(s):  
Metamorphic Rock ◽  
Forest Type ◽  
Mineral Soil ◽  
Chemical Properties ◽  
Primary Forest ◽  
Long Term Effects ◽  
Organic C ◽  
North East ◽  
Exchangeable Ca ◽  
Labile N

Some long term effects of (a) converting rainforest to grassland, and (b) rainforest regeneration on cleared land were investigated by comparing chemical properties of mineral soil (0-10 cm depth) from beneath primary rainforest, derived grassland and old secondary rainforest. Grasslands and secondary rainforest. were on land cleared at least 50 years ago. The study was undertaken on the Atherton Tableland in north east Queensland using soils formed on basalt, granite and metamorphic rocks. Organic C, kjeldahl N and labile N were 15-50% lower (P < 0.05) beneath grassland than primary rainforest for all soils, and were higher beneath secondary rainforest than grassland. Exchangeable Ca varied in a similar way in basaltic soils but did not differ between vegetation types in the other soils. Extractable Al was lower under grassland than either forest type for soils formed on granite and metamorphic rock. Total and organic P concentrations did not differ between primary forest and grassland, but were lowest under secondary rainforest for soils on metamorphic rock.

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