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106篇 您的检索式:作者名="Huff R W"
    题名 作者 年代 出处 被引量
1铁岭组钾质斑脱岩锆石SHRIMP U-Pb年代学研究及其地质意义显示文摘最近在冀北-辽西以碳酸盐岩为主的铁岭组内发现了钾质斑脱岩,并获得其锆石SHRIMP U-Pb年龄——(1437±21)Ma,这一进展将铁岭组的时代确定为中元古代早期盖层纪(Calymmian Period)末期.与此同时,还在同一剖面获得了铁岭组的上覆地层——下马岭组碳硅质页岩里钾质斑脱岩锆石SHRIMPU-Pb年龄——(1372±18)Ma,这与稍早前在北京西北及其附近地区所获得的定年结果(~1380Ma)是一致的.这在肯定了该地区下马岭组应归入中元古代中期延展纪(Ectasian Period)早期的同时,也表明以蓟县剖面为代表的燕山东部地区铁岭组-下马岭组等相关序列,可与北京西山及燕山西部进行良好对比.换言之,华北北部从高于庄组到铁岭组的巨厚碳酸盐岩序列都应视为中元古界盖层系沉积,而铁岭组与下马岭组之间的不整合面可作为中元古界盖层系与延展系之间的物理性分界标志;早先以该不整合面命名的'芹峪上升'(或'芹峪运动')应属于一个时限短暂的中元古代早期的区域抬升,不能再视为华北克拉通对新元古代罗迪尼亚超大陆聚合事件(~1.0Ga)的响应.苏文博 李怀坤 HUFF W D ETTENSOHN F R 张世红 周红英 万渝生 2010科学通报2010,55,22:88
2SHRIMP U-Pb dating for a K-bentonite bed in the Tieling Formation,North China显示文摘A SHRIMP U-Pb zircon age of 1437±21 Ma was obtained for a recently discovered K-bentonite bed in the Tieling Formation,situated northeast of Beijing at the boundary between Liaoning and Hebei provinces,on the northern margin of the North China Craton(NCC).The SHRIMP U-Pb age places Tieling Formation near the end of the Calymmian Period of the early Mesoproterozoic Era.In addition,a SHRIMP U-Pb zircon date of 1372±18 Ma was acquired for K-bentonite beds in the overlying,dark-shale-dominated Xiamaling Formation from the same location northeast of Beijing.This date assigns a similar Mid-Mesoproterozoic(Ectasian Period) age for the Xiamaling Formation,as have previously determined dates from other sections northwest of Beijing.These dates indicate that the Tieling and Xiamaling formations,as well as the related succession in the eastern part of the Yanshan Mountains,represented by the well-known Meso-to Neoproterozoic standard section in Jixian,can be correlated well with sections northwest of Beijing in the western part of the Yanshan Mountains.In other words,the boundary between the Calymmian and Ectasian periods in the northern parts of the NCC is marked by the unconformity between the Tieling and Xiamaling formations in the northern NCC.This boundary was previously ascribed to the 'Qinyu Orogeny' and thought to be of Grenville age.In this regard,the conventional 'Qinyu Orogeny' should now be regarded as a short-lived regional uplift during Early Mesoproterozoic time,rather than a result from the Grenvillian assembly of the NCC to the Rodinia Supercontinent(~1.0 Ga).SU WenBo LI HuaiKun HUFF W D ETTENSOHN F R ZHANG ShiHong ZHOU HongYing WAN YuSheng 2010Chinese Science Bulletin2010,55,29:30
3Natural occurrences of ochratoxicosis in poultry显示文摘Hamilton P A T B Huff W E Harris J R A Y 1982Poultry Science1982,61,9:1
4Effects of ovotransferrin on chicken macrophages and heterophil-granulocytes显示文摘XIE H HUFF G R HUFF W E 2002Dev & Comp Immun2002,26,9:1
5Poststroke depression:risk factors and effects on the course of the stroke显示文摘Huff W Steekel R Sitzer M 2003Nervenarzt2003,74,2:1
6Relationships between Psychological Climate Perceptions and Work Outcomes: A Meta - analytic Review 显示文摘Parker C P Baltes B B Young S A Huff J W Ahmann R A LaCost H A Robers J E 2003Joural of Organizational Behavior Chichester2003,24,4:1
7Relationships between Psychological Climate Perceptions and Work Outcomes:A Meta-analytic Review显示文摘Parker C P Baltes B B Young S A Huff J W Altmann R A LaCost H A Roberts J E 2003Journal of Organizational Behavior Chichester2003,24,4:1
8Effects of aflatoxin, deoxynivalenol, and their combi- nations in the diets of growing pigs 显示文摘HARVEY R B KUBENA L F HUFF W E 1989American Journal of Veterinary Research1989,50,:1
9Acceleration of electrons by the interaction of a bunched electron beam with a plasma显示文摘Chen P Dawson J M Huff R W 1985Phys Rev Lett1985,54,7:1
10Impacts of the Great Lakes on regional climate conditions显示文摘Scott R W Huff F A 1996J Great Lakes Res1996,22,:1
11Prevention of Escherichia coli respiratory infection in broiler chickens with bacteriophage (SPR02) 显示文摘HUFF W E HUFF G R RATH N C 2002Poultry Science2002,81,:1
12Effects of humic acid on broiler chickens显示文摘Rath N C Huff W E Huff G R 2006Poultry Science2006,85,:1
13Prevention of Escherichia coli infection in broiler chickens with a bacteriophage aerosol spray显示文摘HUFF W E HUFF G R RATH J N C 2002Poultry Science2002,81,:1
14Plasma cho- lesterol levels in rabbits fed low fat, cholesterol-free, semi-purified diets- effects of dietary proteins, protein hydrolysates and amino-acid mixtures 显示文摘Huff M W Hamilton R M G Carroll K K 1977Atheroscle- rosis1977,28,2:1
15Effect of ochratoxin Aon Salmonella -challenged broiler chicks显示文摘Elissalde M H Ziprin R L Huff W E 1994Poult Sci1994,73,:1
16Prevention of aflatoxieosis by addition of hydrated sodium calcium aluminositicate to the diets of growing barrows显示文摘Harvey R B Kubena L F Philips T D Huff W E Corrier D E 1989Am J Vet Res1989,50,:1
17K-bentonite, black- shaleand flysch successions at the Ordovician- Silurian transition,South China: Possible sedimentary responses to the accretion ofCathaysia to the Yangtze Block and its implications for theevolution of Gondwana显示文摘Su W Huff W D Ettensohn F R 2009Gondwana Research2009,15,:1
18Prevention of Esche- richia coli infection in broiler chickens with a bacteriophage aerosol spray显示文摘Huff W E Huff G R Rath N C 2002Poult Sci2002,81,10:1
19Limited treatment with β-1,3/1,6-gtucan improves production values of broiler chicken challenged with Escherichia coil显示文摘Huff G R Huff W E Rath N C 2006Poult Sci2006,85,:1
20Dexamethasone immuno- suppression resulting in turkey clostridial dermatitis:A retrospec- tive analysis of seven studies, 1998-2009显示文摘Huff G R Huff W E Rath N C 2013Avian Diseases2013,57,4:1
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