Results 71 to 80 of about 4,838 (230)

A review of the mesothermal gold deposits of the Meguma Group, Nova Scotia, Canada

Ore Geology Reviews, 1998
Abstract The gold province of the Meguma Terrane in Nova Scotia contains several classic examples of turbidite-hosted mesothermal gold deposits. There are over 300 gold occurrences and deposits hosted by the Cambro–Ordovician Meguma group rocks in southern Nova Scotia, Canada.
R.J Ryan, Paul K. Smith
openaire   +2 more sources

The combination of irrigation regime and water cutoff date increases the yield and water use efficiency of castor bean (Ricinus communis L.)

Agrosystems, Geosciences &Environment, Volume 8, Issue 1, March 2025.
Abstract Castor bean (Ricinus communis L.) is a fibrous and fast‐growing plant with increasing economic importance due to its ability to generate energy and in the pharmaceutical and chemical industries. This research aimed to determine the best combination of irrigation regime and irrigation cutoff date (ICD) that maximizes grain and oil yields and ...
Alberto Mario Arroyo Avilez, Andres Felipe Gaona Acevedo, Luan Brioschi Giovanelli, João Carlos Cury Saad, Ícaro Monteiro Galvão, João Luis Zocoler, Mauricio Dutra Zanotto   +6 more
wiley   +1 more source

PROGNOSTIC ESTIMATE OF NOBLEMETAL RESOURCES IN PROMISING ORE DISTRICTS OF THE KARELIAN REGION

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017
The gold and platinoid resources of the Karelian region are expected to increase. Our prediction is based on the leading genetic types of noble-metal mineralization known in the region such as the low-sulphide Pt-Pd type in layered plutons and gabbro ...
Анатолий Иванович Голубев, Василий Иванович Иващенко, Anatoly Golubev, Vasily Ivashchenko   +3 more
doaj   +1 more source

Statistical evaluation of stream sediment geochemical data from Tchangue-Bikoui drainage system, Southern Cameroon: a regional perspective

Geology, Ecology, and Landscapes, 2022
Stream sediments play a significant role in geochemical exploration by identifying possible sources of anomalous element concentration. In this study, we use a multi-element association analysis to investigate the concentration of gold and associated ...
Melvin Tamnta Nforba, Kingsley Ayamba Egbenchung, Nelvice Layu Berinyuy, Mumbfu Ernestine Mimba, Emmanuel Tangko Tangko, Gus Djibril Kouankap Nono   +5 more
doaj   +1 more source

Biochar Addition Reduces the Effect of High Nitrogen on Soil–Microbial Stoichiometric Imbalance in Abandoned Grassland on the Loess Plateau of China

Ecology and Evolution, Volume 15, Issue 2, February 2025.
High N and biochar additions affected soil nutrients and microbial biomass differently, leading to an imbalance in their stoichiometry. High biochar additions diminished the contribution of biochar to soil nutrients and microbial biomass. Biochar addition can offset some of the negative effects of high N deposition on soil nutrients, microbial biomass,
Shuainan Liu, Mingjun Xie, Wende Lu, Xinyue Zhang, Mengyin Du, Yao Yao, Jianyu Yuan, Guang Li   +7 more
wiley   +1 more source

Anthropogenic Disturbance and Climate Change Impacts on the Suitable Habitat of Sphenomorphus incognitus in China

Ecology and Evolution, Volume 15, Issue 1, January 2025.
We used 62 valid occurrence records of Sphenomorphus incognitus and 24 environmental factors (19 climate factors, 4 topographic factors, and 1 human activity factor), and utilized the biomod 2 combined model platform to predict suitable habitats for S.
Kai Chen, Li Ma, Weijun Jiang, Lijin Wang, Li Wei, Hongji Zhang, Ruhao Yang   +6 more
wiley   +1 more source

Petrologic-geochemical evidence of geologic-genetic uniformity of gold hydrothermal deposits formed in black-shale and non-shale substratum [PDF]

, 2007
The problem of gold deposits origin lying in crystal and black-shale substratum is discussed. The expediency of comparative research of all geologic-real-genetic factors of their formation, among which a significant value is retained by the geochemical ...
Kucherenko, I. V.
core  

Hunters and Gatherers of the Rio Grande Plain and the Lower Coast of Texas [PDF]

, 1976
This paper summarizes the prehistoric cultural manifestations found on the Rio Grande Plain of Texas. The primary goal in this paper is to briefly outline the major prehistoric cultural traditions on the Rio Grande Plain.
Hester, Thomas R.
core   +2 more sources

Gold Mineralization Triggered by Contact Metamorphism at Mano Deposit in the South Kitakami Belt, Japan

Resource Geology, Volume 75, Issue 1, January/December 2025.
Genetic model of the Mano deposit. The magmatic intrusion metamorphosed the calcsilicate sedimentary rock to pyroxene hornfels. During the contact metamorphism, supercritical metamorphic fluid separated H2O, H2S and CO2 into the vapor phase, and the remaining hydrothermal fluid containing LMCEs melts transported Au to form Bi‐Te metal alloy‐enriched ...
Yusa Ito, Yasushi Watanabe, Shogo Aoki, Takuya Echigo, Yoshiaki Kon, Takumi Mimura   +5 more
wiley   +1 more source

Mapping of vertical geochemical zonation by the example of gold field Chertovo Koryto (the Patom upland)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
In order to determine the location of mineralization levels on the surface the geochemical data processing has been carried out on the secondary dispersion halos of mesothermal gold field Chertovo Koryto.
Roman Gavrilov
doaj   +2 more sources