Bainiuchang silver-polymetallic ore deposit is located in the southeast Yunnan tin-polymetallic metallogenic belt.The probable reserves and inferred resources of the deposit are of 6 470 t Ag and 1.10 Mt Pb and 1.72 M...Bainiuchang silver-polymetallic ore deposit is located in the southeast Yunnan tin-polymetallic metallogenic belt.The probable reserves and inferred resources of the deposit are of 6 470 t Ag and 1.10 Mt Pb and 1.72 Mt Zn and 86 kt Sn.Orebodies of the deposit occur in clastic-carbonate rocks of Tianpeng Formation and Longha Formation of the middle Cambrian System above the Bainiuchang concealed granite of the late Yanshan period.The concealed granite has the characteristics of tin-bearing granites.Abundance of the mineralization elements Sn,Cu,Zn,Pb,Ag and Sb is high in the granitic rocks.Sulphur isotope data of the metal sulphides indicate that most sulphur is derived from the magmas.The ores are similar in rare earth element(REE)patterns to the granitic rocks.The granitic magma activity results in ore-bearing structures.Rocks of the Middle Cambrian System above the concealed intrusion suffer from skarnization,hornfelsing,marbleization,siliconizing and carbonatization.The mineralization elements Sn,Cu,Zn,Pb,Ag and Sb successively appear from the top of the granite to surrounding rocks.These evidences indicate that the granitic magmatism is the principal mineralization factor.The opinion that the south Bainiuchang ore field and the north Awei ore block are tin and copper potential exploration areas was put forward and was verified by drilling tests.展开更多
Shanghua 511 is a high-yield, high-oil and web blotch-resistant big peanut variety bred by the Shangqiu Academy of Agriculture and Forestry Sciences through sexual hybridization （Yuhua 18♀×Shangyan 9658♂）. In...Shanghua 511 is a high-yield, high-oil and web blotch-resistant big peanut variety bred by the Shangqiu Academy of Agriculture and Forestry Sciences through sexual hybridization （Yuhua 18♀×Shangyan 9658♂）. In the wheat-peanut interplanting regional experiment conducted in Henan Province during 2012-2013, the average pod and seed yield of Shanghua 511 were 5906.19 and 4149.3 kg/hm2, respectively. In the wheat-peanut interplanting production experiment conducted in Henan Province in 2013, the average pod and seed yield of Shanghua 511 were 6036.45 and 4309.50 kg/hm2, respectively. In the kernels of Shanghua 511, the contents of crude fat, oleic acid and linoleic acid were 56.62%, 44.9% and 33.4% respectively, and the oleic/linoleic acid ratio was 1.34. This variety had high resistance to web blotch and medium resistance to leaf spot, viral diseases, root rot and collar rot. The 100-pod weight, 100-kernel weight, shelling percentage and growth period of Shanghua 511 were 270.6, 110.9 g, 70.6% and 120 d, respectively. Shanghua 511 passed the approval of Henan Provincial Crop Variety Approval Committee in August, 2015, and is suitable for spring sowing and wheat interplanting in the surrounding area of Henan Province and the area to the north of Huaihe River.展开更多
During sampling for spawning stock of the silver pomfret,Pampus argenteus in Kuwait waters,a few seriously deformed individuals were captured.These individuals had been attacked and wounded,but had healed and survived...During sampling for spawning stock of the silver pomfret,Pampus argenteus in Kuwait waters,a few seriously deformed individuals were captured.These individuals had been attacked and wounded,but had healed and survived.The fish body deformities are believed to be caused by predation attempts on silver pomfret by predators such as sharks,groupers,and croakers.展开更多
The authors studied the geochemistry, zircon U-Pb ages, Hf isotope of the granite porphyry and its petrogenesis and tectonic setting in the studied area. The zircon U-Pb dating indicates the formation of the granite p...The authors studied the geochemistry, zircon U-Pb ages, Hf isotope of the granite porphyry and its petrogenesis and tectonic setting in the studied area. The zircon U-Pb dating indicates the formation of the granite porphyry is in Early Cretaceous （ 125.1 ± 1.5 Ma）. The granite porphyry has high-SiO2 and alkali-rich features, which belongs to high-K talc-alkaline series rocks （ A/CNK = 0. 95%-1. 25% ）. The analyses of trace elements show the characteristics of a swallow-shaped REE distribution pattern with enrichment in LREEs and most of LILEs and HFSEs, depletion in Ba, Sr, Nb, P and Ti, and especially strong depletion in Eu, which indicates the granite porphyry belongs to the aluminous A-type granite. Their εHf（t） range from 5.94 to 8.80 with Hf two-stage model ages （TDM2 ） of 620 Ma to 803 Ma. Combining with the regional tectonic background, we conclude that the source of the rocks is the new crust materials accreted from depleted mantle in Neoproterozoic and is the product of partial melting of middle and lower crustal rocks, which may be suffered from the dual impact of the subduction of the Palaeo-Pacific Ocean and the closure of the Mongol-Okhotsk Ocean.展开更多
Zircon LA-ICP-MS U-Pb age and whole-rock geochemistry data are presented for the Hutouya grano-diorite porphyries in Mengyin, western Shandong, to restrict its petrogenesis. The analyzed zircons exhibit os-cillatory g...Zircon LA-ICP-MS U-Pb age and whole-rock geochemistry data are presented for the Hutouya grano-diorite porphyries in Mengyin, western Shandong, to restrict its petrogenesis. The analyzed zircons exhibit os-cillatory growth zoning and core-rim textures in the cathodoluminescence images and have high Th/U ratios （0.04-1.66）,indicating its magmatic origin. The youngest group of magmatic zircon yields weighted mean 206Pb/238U age of 132 ±2 Ma, which represents the forming age of the granodiorite porphyries, i. e., the Early Cretaceous. The oldest group of magmatic zircon 207Pb/206Pb ages ranges from 2 398 Ma to 2 370 Ma, yielding a weighted mean age of 2 389 ±23 Ma,suggesting that the basement of the North China Craton should exist in the research area. Geochemically, the samples are characterized by high Si02（70. 38% and 64. 87% ） , low MgO （0.60% and 1. 53% ） and Mg# values （42. 92 and 50. 42）. Moreover, they show enrichment of light rare earth elements and large ion lithophile elements （e. g. Rb, Ba and K） , depletion of heavy rare earth ele-ments and high field strength elements （e. g. Nb and Ta） , positive anomaly of Pb, and negative anomaly of Ti. These results, together with previously published data, indicate that the Hutouya granodiorite porphyries were derived from partial melting of a delaminated lower continental crust and subsequent interaction with the mantle peridotites. They are consistent with the period of lithospheric thinning beneath the eastern North China Craton and may be formed in an extensional tectonic environment.展开更多
The Chinese Grouse (Tetrastes sewerzowi) is a rare, endemic bird in China, inhabiting conifer-dominated mountain forests. Both the natural fragmentation and heavy cutting of mature forests have resulted in patchy grou...The Chinese Grouse (Tetrastes sewerzowi) is a rare, endemic bird in China, inhabiting conifer-dominated mountain forests. Both the natural fragmentation and heavy cutting of mature forests have resulted in patchy grouse habitats. We used SPOT (XS-sensor) satellite imagery to discriminate between open land and conifer or broadleaf forests. The area analyzed is about 120000 ha in size and includes the Lianhuashan Nature Reserve and the Yeliguan Forestry Park. We identiifed 4111 ha of mature coniferous forests in 229 patches (maximum 332 ha, mean 18 ha) as the habitat used by Chinese Grouse throughout the year. We examined 31 forest islands of different sizes and degrees of isolation for the presence of Chinese Grouse. We used generalized linear models (GLM) with binomial error structure and logit link function to estimate the probability of Chinese Grouse occupancy in a forest fragment. Habitat patch size (hs) and distance to the next occupied fragment (doc) were used as predictor variables, important for occupancy. Small habitat islands were disproportionately less likely to be occupied than large, nearby habitats. There was a clear speciifc habitat size of about 40 ha, above which habitat fragments were occupied more often. Suitable habitat fragments isolated by more than 2 km appeared to be inaccessible to Chinese Grouse. The results have been used in reforestation projects to establish linking corridors in the study area.展开更多
Algae of the order Laminariales represent main seaweed resource of Russia, Most important commercial species formerly belonged to Laminaria Lamoroux. However, taxonomic revision of this genus and resurrection of Sacch...Algae of the order Laminariales represent main seaweed resource of Russia, Most important commercial species formerly belonged to Laminaria Lamoroux. However, taxonomic revision of this genus and resurrection of Saccharina Stackhouse based on genetic studies resulted in transfer of most Laminaria species to Saccharina. At the Russian Pacific coasts Saccharina now includes 10 species, while only three species for sure represent Laminaria： L. longipes Bory de Saint-Vincent, L. solidungula J. Agardh, L. yezoensis Miyabe, their placement within Laminaria is supported by genetic data. All examined Far Eastern species of Saccharina are noticed to possess haptera in the form of rhizoids, whereas members of Laminaria have disk-like holdfasts （L. solidungula, L. yezoensis）, or creeping rhizomes （L. longipes）. Three unstudied genetically endemics from the Sea of Okhotsk： L. appressirhiza Petrov et Vozzhinskaya, L. inclinatorhiza Petrov et Vozzhinskaya, L. multiplicata Petrov et Suchovejeva, are still left within Laminaria, but they have rhizoids, so most probably belong to Saccharina. This morphological criterion is inapplicable to Atlantic Laminaria since the type species L. digitata （Hudson） Lamouroux has rhizoids.展开更多
It is often assumed that birds are able to choose a breeding territory that will later on have the most food for nestlings. Studies on this essential question are, however, few. We studied territory choice of a long-d...It is often assumed that birds are able to choose a breeding territory that will later on have the most food for nestlings. Studies on this essential question are, however, few. We studied territory choice of a long-distance migrant, the pied flycatcher Ficedula hypoleuca in southwestern Finland. In one study area, we monitored the territory choice of males via the order of territory settlement. Female territory choice was studied experimentally in another study area where the correlation between male and territory quality was removed by not allowing males a free choice of territory. We defined several habitat characteristics and es- timated the abundances of invertebrate prey from air, ground and trees with appropriate traps from the surroundings of the nest sites in both study areas. Against the expectation that parent birds would choose an arthropod-rich territory, neither males nor females seemed to choose those territories that later had the most food for nestlings. There was, however, some evidence that more eggs were laid in territories with more aphids and that more fledglings were produced in territories with high ant abundance. Our findings thus suggest that while it would be beneficial for birds to be able to choose food-rich territories, they may not be able to detect the right cues for doing so early in the breeding season. The possibility and importance of detecting the territories with the best prospects of rearing young may, however, vary among and within seasons and more studies on this topic are clearly needed [Current Zoology 61 （4）： 604-613, 2015].展开更多
Objective： To observe the clinical effects of acupuncture therapy for alopecia areata. Methods： Seventy-eight patients were randomly divided into two groups. 43 cases in the treatment group were treated by acupunctu...Objective： To observe the clinical effects of acupuncture therapy for alopecia areata. Methods： Seventy-eight patients were randomly divided into two groups. 43 cases in the treatment group were treated by acupuncture and pricking of plum-blossom needle therapy. 35 cases in the control group were treated with oral administration of Cystine tablets, Vit B 1, and topical wash with Minoxidil Solution. The therapeutic effects were assessed after 4-month treatment in the two groups. Results： The curative effect and total effective rate were 58.1% and 97.7% in the treatment group, and 34.3% and 77.1% in the control group respectively, with statistical differences in the curative rate and total effective rate between the two groups （both P〈0.05）. Conclusion： Acupuncture is better than medications in the treatment of alopecia areata.展开更多
基金Project(40072032) supported by the National Natural Science Foundation of ChinaProject(2004YX06) supported by the Yunnan Province-Institutes/Universities’ Science and Technology Cooperation Project Item
文摘Bainiuchang silver-polymetallic ore deposit is located in the southeast Yunnan tin-polymetallic metallogenic belt.The probable reserves and inferred resources of the deposit are of 6 470 t Ag and 1.10 Mt Pb and 1.72 Mt Zn and 86 kt Sn.Orebodies of the deposit occur in clastic-carbonate rocks of Tianpeng Formation and Longha Formation of the middle Cambrian System above the Bainiuchang concealed granite of the late Yanshan period.The concealed granite has the characteristics of tin-bearing granites.Abundance of the mineralization elements Sn,Cu,Zn,Pb,Ag and Sb is high in the granitic rocks.Sulphur isotope data of the metal sulphides indicate that most sulphur is derived from the magmas.The ores are similar in rare earth element(REE)patterns to the granitic rocks.The granitic magma activity results in ore-bearing structures.Rocks of the Middle Cambrian System above the concealed intrusion suffer from skarnization,hornfelsing,marbleization,siliconizing and carbonatization.The mineralization elements Sn,Cu,Zn,Pb,Ag and Sb successively appear from the top of the granite to surrounding rocks.These evidences indicate that the granitic magmatism is the principal mineralization factor.The opinion that the south Bainiuchang ore field and the north Awei ore block are tin and copper potential exploration areas was put forward and was verified by drilling tests.
基金Supported by Genetic Breeding Post Special Fund of Peanut Industrial Technology System in Henan Province(S2012-05-G01)Major Science and Technology Program of Henan Province(141100110600,161100111000)~~
文摘Shanghua 511 is a high-yield, high-oil and web blotch-resistant big peanut variety bred by the Shangqiu Academy of Agriculture and Forestry Sciences through sexual hybridization （Yuhua 18♀×Shangyan 9658♂）. In the wheat-peanut interplanting regional experiment conducted in Henan Province during 2012-2013, the average pod and seed yield of Shanghua 511 were 5906.19 and 4149.3 kg/hm2, respectively. In the wheat-peanut interplanting production experiment conducted in Henan Province in 2013, the average pod and seed yield of Shanghua 511 were 6036.45 and 4309.50 kg/hm2, respectively. In the kernels of Shanghua 511, the contents of crude fat, oleic acid and linoleic acid were 56.62%, 44.9% and 33.4% respectively, and the oleic/linoleic acid ratio was 1.34. This variety had high resistance to web blotch and medium resistance to leaf spot, viral diseases, root rot and collar rot. The 100-pod weight, 100-kernel weight, shelling percentage and growth period of Shanghua 511 were 270.6, 110.9 g, 70.6% and 120 d, respectively. Shanghua 511 passed the approval of Henan Provincial Crop Variety Approval Committee in August, 2015, and is suitable for spring sowing and wheat interplanting in the surrounding area of Henan Province and the area to the north of Huaihe River.
文摘During sampling for spawning stock of the silver pomfret,Pampus argenteus in Kuwait waters,a few seriously deformed individuals were captured.These individuals had been attacked and wounded,but had healed and survived.The fish body deformities are believed to be caused by predation attempts on silver pomfret by predators such as sharks,groupers,and croakers.
文摘The authors studied the geochemistry, zircon U-Pb ages, Hf isotope of the granite porphyry and its petrogenesis and tectonic setting in the studied area. The zircon U-Pb dating indicates the formation of the granite porphyry is in Early Cretaceous （ 125.1 ± 1.5 Ma）. The granite porphyry has high-SiO2 and alkali-rich features, which belongs to high-K talc-alkaline series rocks （ A/CNK = 0. 95%-1. 25% ）. The analyses of trace elements show the characteristics of a swallow-shaped REE distribution pattern with enrichment in LREEs and most of LILEs and HFSEs, depletion in Ba, Sr, Nb, P and Ti, and especially strong depletion in Eu, which indicates the granite porphyry belongs to the aluminous A-type granite. Their εHf（t） range from 5.94 to 8.80 with Hf two-stage model ages （TDM2 ） of 620 Ma to 803 Ma. Combining with the regional tectonic background, we conclude that the source of the rocks is the new crust materials accreted from depleted mantle in Neoproterozoic and is the product of partial melting of middle and lower crustal rocks, which may be suffered from the dual impact of the subduction of the Palaeo-Pacific Ocean and the closure of the Mongol-Okhotsk Ocean.
基金Supported by projects of the Natural Science Foundation of China(41472052)Basic Scientific Research Foundation of Central Universities of China
文摘Zircon LA-ICP-MS U-Pb age and whole-rock geochemistry data are presented for the Hutouya grano-diorite porphyries in Mengyin, western Shandong, to restrict its petrogenesis. The analyzed zircons exhibit os-cillatory growth zoning and core-rim textures in the cathodoluminescence images and have high Th/U ratios （0.04-1.66）,indicating its magmatic origin. The youngest group of magmatic zircon yields weighted mean 206Pb/238U age of 132 ±2 Ma, which represents the forming age of the granodiorite porphyries, i. e., the Early Cretaceous. The oldest group of magmatic zircon 207Pb/206Pb ages ranges from 2 398 Ma to 2 370 Ma, yielding a weighted mean age of 2 389 ±23 Ma,suggesting that the basement of the North China Craton should exist in the research area. Geochemically, the samples are characterized by high Si02（70. 38% and 64. 87% ） , low MgO （0.60% and 1. 53% ） and Mg# values （42. 92 and 50. 42）. Moreover, they show enrichment of light rare earth elements and large ion lithophile elements （e. g. Rb, Ba and K） , depletion of heavy rare earth ele-ments and high field strength elements （e. g. Nb and Ta） , positive anomaly of Pb, and negative anomaly of Ti. These results, together with previously published data, indicate that the Hutouya granodiorite porphyries were derived from partial melting of a delaminated lower continental crust and subsequent interaction with the mantle peridotites. They are consistent with the period of lithospheric thinning beneath the eastern North China Craton and may be formed in an extensional tectonic environment.
基金supported by the National Natural Science Foundation of China(Grant No.31270468,30620130110)
文摘The Chinese Grouse (Tetrastes sewerzowi) is a rare, endemic bird in China, inhabiting conifer-dominated mountain forests. Both the natural fragmentation and heavy cutting of mature forests have resulted in patchy grouse habitats. We used SPOT (XS-sensor) satellite imagery to discriminate between open land and conifer or broadleaf forests. The area analyzed is about 120000 ha in size and includes the Lianhuashan Nature Reserve and the Yeliguan Forestry Park. We identiifed 4111 ha of mature coniferous forests in 229 patches (maximum 332 ha, mean 18 ha) as the habitat used by Chinese Grouse throughout the year. We examined 31 forest islands of different sizes and degrees of isolation for the presence of Chinese Grouse. We used generalized linear models (GLM) with binomial error structure and logit link function to estimate the probability of Chinese Grouse occupancy in a forest fragment. Habitat patch size (hs) and distance to the next occupied fragment (doc) were used as predictor variables, important for occupancy. Small habitat islands were disproportionately less likely to be occupied than large, nearby habitats. There was a clear speciifc habitat size of about 40 ha, above which habitat fragments were occupied more often. Suitable habitat fragments isolated by more than 2 km appeared to be inaccessible to Chinese Grouse. The results have been used in reforestation projects to establish linking corridors in the study area.
文摘Algae of the order Laminariales represent main seaweed resource of Russia, Most important commercial species formerly belonged to Laminaria Lamoroux. However, taxonomic revision of this genus and resurrection of Saccharina Stackhouse based on genetic studies resulted in transfer of most Laminaria species to Saccharina. At the Russian Pacific coasts Saccharina now includes 10 species, while only three species for sure represent Laminaria： L. longipes Bory de Saint-Vincent, L. solidungula J. Agardh, L. yezoensis Miyabe, their placement within Laminaria is supported by genetic data. All examined Far Eastern species of Saccharina are noticed to possess haptera in the form of rhizoids, whereas members of Laminaria have disk-like holdfasts （L. solidungula, L. yezoensis）, or creeping rhizomes （L. longipes）. Three unstudied genetically endemics from the Sea of Okhotsk： L. appressirhiza Petrov et Vozzhinskaya, L. inclinatorhiza Petrov et Vozzhinskaya, L. multiplicata Petrov et Suchovejeva, are still left within Laminaria, but they have rhizoids, so most probably belong to Saccharina. This morphological criterion is inapplicable to Atlantic Laminaria since the type species L. digitata （Hudson） Lamouroux has rhizoids.
文摘It is often assumed that birds are able to choose a breeding territory that will later on have the most food for nestlings. Studies on this essential question are, however, few. We studied territory choice of a long-distance migrant, the pied flycatcher Ficedula hypoleuca in southwestern Finland. In one study area, we monitored the territory choice of males via the order of territory settlement. Female territory choice was studied experimentally in another study area where the correlation between male and territory quality was removed by not allowing males a free choice of territory. We defined several habitat characteristics and es- timated the abundances of invertebrate prey from air, ground and trees with appropriate traps from the surroundings of the nest sites in both study areas. Against the expectation that parent birds would choose an arthropod-rich territory, neither males nor females seemed to choose those territories that later had the most food for nestlings. There was, however, some evidence that more eggs were laid in territories with more aphids and that more fledglings were produced in territories with high ant abundance. Our findings thus suggest that while it would be beneficial for birds to be able to choose food-rich territories, they may not be able to detect the right cues for doing so early in the breeding season. The possibility and importance of detecting the territories with the best prospects of rearing young may, however, vary among and within seasons and more studies on this topic are clearly needed [Current Zoology 61 （4）： 604-613, 2015].
文摘Objective： To observe the clinical effects of acupuncture therapy for alopecia areata. Methods： Seventy-eight patients were randomly divided into two groups. 43 cases in the treatment group were treated by acupuncture and pricking of plum-blossom needle therapy. 35 cases in the control group were treated with oral administration of Cystine tablets, Vit B 1, and topical wash with Minoxidil Solution. The therapeutic effects were assessed after 4-month treatment in the two groups. Results： The curative effect and total effective rate were 58.1% and 97.7% in the treatment group, and 34.3% and 77.1% in the control group respectively, with statistical differences in the curative rate and total effective rate between the two groups （both P〈0.05）. Conclusion： Acupuncture is better than medications in the treatment of alopecia areata.
