1 INTRODUCTION. Zircon is a common accessory mineral in sedimentary rocks. Because it is resistant to alteration and weathering, its age distributions and Hf isotopic compositions are often used to identify …
Abstract. The development history of high topography in the northeastern (NE) Tibetan Plateau is essential to test various plateau growth models and understand plateau construction. We present integrated provenance data from the NE Qaidam Basin, south of the Qilian Shan. Results show an increase in carbonate lithics, an increase in Al 2 ratios ...
The history of sea‐level change and sediment accumulation since the last deglaciation along the German North Sea coast is still controversial because of a limitation in the quantity and quality of chronological data. In the current study, the chronology of a 16‐ka coastal sedimentary record from the Garding‐2 core, retrieved from the Eiderstedt …
Currently, only pegmatite and brine resources are used to produce lithium chemical products commercially, but a host of new players aiming to produce lithium using sedimentary …
The most thoroughly studied deposit is a laterally continuous, ~3000 ppm Li zone in the lower sedimentary section that also has high K, Rb, Mo, As, and Sb (and partly Mg and F). Lithium occurs as ...
Stream sediment analysis for Lithium (Li) exploration in the Douro region (Portugal): A comparative study of the spatial interpolation and catchment basin …
Taiwan Island's outcropping strata can provide important insights into the sedimentary environment and source development of the southeast China margin. This research is based on the Eocene-Miocene strata of the Tsukeng area in the central Western Foothills, northeast shoreline of Taiwan Island and two sites of the East China Sea Shelf …
Special issue on Continental Remobilization and Metallogenesis in China, Edited by Yongjun Shao, Peter Hollings, Bin Li, Yanbo Cheng and Yu Zhang. select article Ore-forming process of the W–Sn and Cu skarn mineralization in the Huangshaping deposit (Nanling Range): Constraints from scheelite geochemistry and cassiterite U–Pb geochronology.
@article{Li2020SedimentaryBE, title={Sedimentary basin evolution, gravity flows, volcanism, and their impacts on the formation of the Lower Cretaceous oil shales in the Chaoyang Basin, northeastern China}, author={Li Xing Li and Zhaojun Liu and Pingchang Sun and Yuanji Li and Simon C. George}, journal={Marine and Petroleum …
Abstract. Seawater lithium isotopes (δ 7 Li) record changes over Earth history, including a ∼ 9‰ increase during the Cenozoic interpreted as reflecting either a change in continental silicate ...
Based on systematic studies of major and trace element and Sm-Nd isotopic geochemistry, the Precambrian to Triassic clastic sedimentary rocks in the Garze-Songpan block and Longmen Mountains have been finished. The rocks are determined to be graywacke and arkose and their material source should be a mixture of mafic and felsic materials and …
FIGURE 1.(A) Tectonic digital elevation model (DEM) map of the Tibetan Plateau and it adjacent regions showing the major thrust faults [modified from Sun J. et al. (2005)]. (B) DEM map of the northeastern region of the NE Tibetan Plateau showing the locations of the Qaidam Basin [modified from Li et al. (2017)].See Panel (A) for its …
lithium. lithium (Li), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group, lightest of the solid elements. The metal itself—which is soft, white, and lustrous—and several of its alloys and compounds are produced on an industrial scale. Element Properties. atomic number.
Four groups of discrete element models (DEMs) were set-up to simulate and analyze the influence of regional erosion and sedimentary loading on the formation and spatial-temporal evolution of faults in the southern and central Longmen Shan (LMS) active fold-thrust belt. The interior characteristics of faults in the southern and central LMS fold …
'Fingerprint' identification is the key to turquoise provenance studies, but previous studies have met with limited success in China. Turquoises in China mainly occur in altered sedimentary rocks and are formed by weathering, leaching and sedimentation. This paper evaluates the potential for sedimentary environment sensitive elements to be …
The resulting sedimentary layer underneath NE96 is ~2.90±0.21 km thick with an average Vp/Vs ratio of 2.20±0.23 and an S wave velocity increasing from 0.99±0.07 km/s at the surface to 2.50±0.21 km/s at the bottom of the layer. The uncertainties here are calculated from the standard deviation of the 1,000 resampled models and are generally ...
Over the world, the available lithium (Li) resources are reserved mainly in closed-basin brines, with high Li concentration (> 150 mg/L) and low Mg/Li ratio (< 10) …
Carbon and nitrogen stable isotopes are useful tracers for distinguishing marine and terrestrial plant sources of sedimentary organic matter (OM), and for identifying OM from different types of plants. By analyzing the carbon and nitrogen stable isotopes of marine and riverine sediments from Bohai Bay and its catchment, we were able to …
The discovery and development of world-class Lithium–Caesium–Tantalum (LCT) spodumene-bearing pegmatites in Western Australia underpins growth of a significant new sector of its mining industry.
Detrital zircons are ubiquitous in sandstones, because zircon is highly resistant to both chemical and physical weathering. The age of a single zircon grain is interpreted to be the crystallization age of a rock in the provenance. A sedimentary deposit likely contains components from multiple crystalline sources as a result of multiple magmatic ...
The Ordos Basin is the second largest sedimentary basin and also the main production area of the Changqing Oilfield, which is the largest oil and gas field in China (Zou et al. 2019).It is a NS-trending rectangular in shape, and is bounded by the Lvliang (east), Yin and Daqing (north), Qinling (south), Liupan and Helan (west) Mountains (Fig. 1). ...
The Songliao Basin is located in northeast China between 119° 40′–128° 24′ E and 42° 25′–49° 23′ N. It is a NE–SW-trending basin, approximately 750 km long and 330–370 km wide ...
The Ordovician sedimentary rock of the Palaeozoic basement, has a δ 7 Li value of − 1.3‰, Li of 31 µg/g and 87 Sr/ 86 Sr of 0.7312 (Meixner et al. 2020), and a water-soluble fraction with a δ 7 Li value of + 15.7‰, Li of 66 µg/g and 87 Sr/ 86 Sr of 0.7267.
The current lithium production based on the three types of resources decreases in the order of brine-type (∼64%), pegmatite-type (∼29%), and clay-type (∼7%). Among these, brines and several ores (e.g., spodumene, lepidolite) were considered valuable for Li extraction due to the economic enrichment of lithium.
Here, we present results from this ongoing research, focusing on three key components of all major sedimentary lithium deposits: (1) volcanic and/or hydrothermal lithium sources; …
Based on the assumption that relative sea-level and lake-level changes may control sedimentary rates of subaqueous terrigenous sediments within basins, the CDMR could change inversely with relative sea or lake level. Thus, this tool could be interpreted as an indicator of relative sea-level and lake-level changes in terrigenous successions.
The Late Cretaceous tectonic evolution of NE China reflects a complex history of extensional, contractional and strike-slip deformation as a result of the Mesozoic geodynamics of the active margin of East Asia. The NNE–trending, late Jurassic–Cretaceous sedimentary basins in the region display a complete structural …
We measured the magnetic properties of core ZK9 from the subaqueous Yangtze delta to examine the mechanisms and possibility of using magnetic proxies for the sedimentary environmental evolution controlled by the Holocene sea level. The results showed that low values of most magnetic parameters occurred and pyrite formed in the …
δ 11 B values in different water types or geological bodies in nature. References of δ 11 B are shown in Table 3. Compared to the surrounding rock minerals, a wide range of δ 11 B values is ...
Cretaceous strata are widely distributed across China and record a variety of depositional settings. The sedimentary facies consist primarily of terrestrial, marine and interbedded marine-terrestrial deposits, of which marine and interbedded facies are relatively limited. Based a thorough review of the subdivisions and correlations of Cretaceous …