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Urbanization alters the thermal and dynamic environment of the local climate system, resulting in significant impacts on precipitation in both urban and adjacent areas. Nevertheless, there remains a significant gap in our understanding of urbanization‐induced effects on asymmetrical, symmetrical, and other precipitation patterns in urban agglomerations (UAs) with divergent background climates and geographic regions at different timescales. Specifically, this asymmetrical change pattern is characterized by an increase in heavy (or light) rainfall and a decrease in light (or heavy) rainfall. Here, we assessed the effects of urbanization on precipitation patterns across 18 UAs situated in diverse background climates and geographical areas in China at different timescales. The results demonstrate that urbanization predominantly alters precipitation patterns in UAs located in the humid region. Specifically, urbanization amplified asymmetrical changes in Yangtze River Delta, Pearl River Delta, Beibu Gulf, Middle Yangtze River, and Guanzhong, but exacerbated symmetrical changes in precipitation in some regions such as Chengdu‐Chongqing. Notably, the urbanization effect demonstrates greater significance at the hourly scale, as exemplified in the Yangtze River Delta, Pearl River Delta, and Middle Yangtze River, where the urban impact is nearly twice as pronounced when compared to the daily scale. Moreover, urbanization had either no effect or has a negative impact on precipitation patterns in UAs located within continental and arid regions. This is related to the intensity of urbanization, background climate and complex topography. This finding implies that urban managers should consider the impact of urbanization on precipitation patterns in different contexts to provide scientific guidance for urban planning. Plain Language Summary: China has undergone rapid urbanization in recent decades, resulting in increased heavy precipitation and decreased light precipitation in specific urban agglomerations. However, the influence of urbanization on different precipitation patterns (e.g., symmetric and asymmetric) at various timescales remains uncertain. This study investigates rainfall pattern changes across 18 urban agglomerations with diverse geographical locations and background climates. Our findings reveal that from 1961 to 2015, urbanization primarily modified precipitation patterns in humid regions, amplifying asymmetric changes in the Yangtze River Delta, Pearl River Delta, Middle Yangtze River, and Beibu Gulf. Importantly, in specific urban agglomerations, the impact of urbanization on precipitation is more pronounced at the hourly scale compared to the daily scale. Key Points: The influence of urbanization on precipitation change patterns at various time scales were investigated in 18 Urban Agglomerations in ChinaUrbanization has altered the precipitation patterns in the humid zone, amplifying heavy rainfall and suppressing light rainfall in the Yangtze River Delta, Pearl River Delta, Beibu Gulf regionsThe precipitation effect of urbanization exhibits a more pronounced variation on an hourly scale, being twice as substantial as on a daily scale in specific urban agglomerations [ABSTRACT FROM AUTHOR]

A mosaic of terranes or blocks and associated Late Paleozoic to Mesozoic sutures are characteristics of the north Sanjiang orogenic belt (NSOB). A detailed field study and sampling across the three magmatic belts in north Sanjiang orogenic belt, which are the Jomda-Weixi magmatic belt, the Yidun magmatic belt and the Northeast Lhasa magmatic belt, yield abundant data that demonstrate multiphase magmatism took place during the late Paleozoic to early Mesozoic. 9 new zircon LA-ICP-MS U-Pb ages and 160 published geochronological data have identified five continuous episodes of magma activities in the NSOB from the Late Paleozoic to Mesozoic: the Late Permian to Early Triassic (c. 261-230 Ma); the Middle to Late Triassic (c. 229-210 Ma); the Early to Middle Jurassic (c. 206-165 Ma); the Early Cretaceous (c. 138-110 Ma) and the Late Cretaceous (c. 103-75 Ma). 105 new and 830 published geochemical data reveal that the intrusive rocks in different episodes have distinct geochemical compositions. The Late Permian to Early Triassic intrusive rocks are all distributed in the Jomda-Weixi magmatic belt, showing arc-like characteristics; the Middle to Late Triassic intrusive rocks widely distributed in both Jomda-Weixi and Yidun magmatic belts, also demonstrating volcanic-arc granite features; the Early to Middle Jurassic intrusive rocks are mostly exposed in the easternmost Yidun magmatic belt and scattered in the westernmost Yangtza Block along the Garzê-Litang suture, showing the properties of syn-collisional granite; nearly all the Early Cretaceous intrusive rocks distributed in the NE Lhasa magmatic belt along Bangong suture, exhibiting both arc-like and syn-collision-like characteristics; and the Late Cretaceous intrusive rocks mainly exposed in the westernmost Yidun magmatic belt, with A-type granite features. These suggest that the co-collision related magmatism in Indosinian period developed in the central and eastern parts of NSOB while the Yanshan period co-collision related magmatism mainly occurred in the west area. In detail, the earliest magmatism developed in late Permian to Triassic and formed the Jomda-Wei magmatic belt, then magmatic activity migrated eastwards and westwards, forming the Yidun magmatic bellt, the magmatism weakend at the end of late Triassic, until the explosure of the magmatic activity occurred in early Cretaceous in the west NSOB, forming the NE Lhasa magmatic belt. Then the magmatism migrated eastwards and made an impact on the within-plate magmatism in Yidun magmatic belt in late Cretaceous. [ABSTRACT FROM AUTHOR]

The article reports on geological study of Pb-Zn deposits located in Narusonghuo, China. Topics discussed include several Pb-Zn mineralization formed by various physical processes chloritization, silicification and carbonation, found in the region, associated with quartz syenite porphyry, geochemical analysis on the same and role of Neo Tethys oceanic crust and wedge mantle in formation of Narusongduo porphyry magma, with characteristic chemical geology.