Sichuan al link technology что это

Крупный производитель IoT-модулей уверен в перспективах на 2020 год, несмотря на срыв цепочки поставок

Компания Sichuan AI-Link Technology, крупнейший китайский производитель модулей “Интернета вещей” (IoT), уверена, что все еще сможет достичь своей цели на полный годовой доход к 2020 году, несмотря на сбои в цепочке поставок в условиях новой вспышки коронавируса.

Компания, которая на 70 процентов принадлежит Changhong, одной из крупнейших китайских компаний по производству бытовой электроники, производит около 12 миллионов модулей различных видов в месяц.

«Скорее всего, мы не достигнем наших финансовых целей на первый квартал, но мы по-прежнему уверены в том, что сможем достичь цели на весь 2020 год — увеличение доходов на 10% по сравнению с прошлогодней отметкой в один миллиард юаней», — сказал Лю Сяопин, вице-президент Сычуань. AI-Link, рассказал CGTN.

Созданная в декабре 2016 года как ключевая единица в реформировании государственного предприятия в Чанхуне и пилотном проекте с участием акционеров, технология Sichuan AI-Link также поддерживается высокочастотным электронным тюнером материнской компании.

Компания возобновила свою деятельность 10 февраля — с недельной задержкой от намеченной даты 3 февраля.

Большинство из его 600 сотрудников вернулись на работу, а остальные все еще постепенно возвращаются к работе партиями. Некоторые ранее находились под карантином, вернувшись из-за пределов города и провинции. При входе в офисные помещения сотрудникам проверяют температуру тела.

Несмотря на то, что емкость в настоящее время составляет 90 процентов, Лю Сяопин сказал, что основной проблемой, стоящей перед компанией, остается поиск достаточного количества ключевых компонентов и деталей.

Это происходит из-за того, что электрические части составляют большую часть затрат Сычуань AI-Link.

«Наши первичные поставщики электрических компонентов постепенно возобновляют работу, но не все одновременно. У нас более ста поставщиков. Если человек не сможет возобновить работу, это повлияет на все наше производство», — сказал он.

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THE ORE PROSPECTING PREDICTION MODEL FOR THE HUILI COPPER OREFIELD IN SICHUAN PROVINCE, CHINA Текст научной статьи по специальности «Науки о Земле и смежные экологические науки»

Аннотация научной статьи по наукам о Земле и смежным экологическим наукам, автор научной работы — Lin Lujun, Chen Hui, Pang Zhenshan, Cheng Zhizhong, Xue Jianling

The prediction theory and methodology of ore prospecting were developed from an in-depth study of 129 typical deposits in China. It has been verified to be an effective method that is particularly suitable for the initial ore prospecting. In this method, the internal and external factors of metallogenesis are combined together to construct a geological model of prospecting prediction, which consists of metallogenic geological body, metallogenic structure, metallogenic structural plane and metallogenic characteristics. The Huili area is located in the western margin of the Yangtze Plate, where the regional metallogenic geological conditions are superior, and a series of unique iron-copper deposits were formed. In recent years, great breakthroughs and progress have been made in the deep and peripheral areas of the Huili copper orefield. Herein, we take the Huili copper orefield as a typical example to illustrate the specific application of this method in deep ore prospecting of hydrothermal deposits. The metallogenic geological body is the ore-hosting volcanic rocks (albitite in the Hekou Group), and the main metallogenic structure and structural planes are interfaces between basic (intermediate) volcanic rocks and sedimentary rocks and the possible volcanic vent. Combined with the summary of metallogenic characteristics, we constructed a geological model for ore prospecting in the Huili copper orefield .

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Текст научной работы на тему «THE ORE PROSPECTING PREDICTION MODEL FOR THE HUILI COPPER OREFIELD IN SICHUAN PROVINCE, CHINA»

The ore prospecting prediction model for the Huili copper orefield in Sichuan Province, China*

Lujun Lina, Hui Chenb, Zhenshan Pangc, Zhizhong Chengd, Jianling Xuee, Wen Taof, Yixing Mag, Lingming Gongh, Hongtao Sheni

aInstitute of Geophysical and Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang, China

b~e,gDevelopment Research Center, China Geological Survey, Beijing, China

b-gTechnical Guidance Center for Mineral Resources Exploration,

Ministry of Natural Resources of the People’s Republic of China, Beijing, China

hiSichuan Bureau of Geology and Mineral Resources, Emeishan, China

Corresponding author: Hui Chen, cgschenhui@163.com

Abstract. The prediction theory and methodology of ore prospecting were developed from an in-depth study of 129 typical deposits in China. It has been verified to be an effective method that is particularly suitable for the initial ore prospecti ng. In this method, the internal and external factors of metallogenesis are combined together to construct a geological model of prospecting prediction, which consists of metallogenic geological body, metallogenic structure, metallogenic structural plane and metallogenic characteristics. The Huili area is located in the western margin of the Yangtze Plate, where the regional metallogenic geological conditions are superior, and a series of unique iron-copper deposits were formed. In recent years, great breakthroughs and progress have been made in the deep and peripheral areas of the Huili copper orefield. Herein, we take the Huili copper orefield as a typical example to illustrate the specific application of this method in deep ore prospecting of hydrothermal deposits. The metallogenic geological body is the ore-hosting volcanic rocks (albitite in the Hekou Group), and the main metallogenic structure and structural planes are interfaces between basic (intermediate) volcanic rocks and sedimentary rocks and the possible volcanic vent. Combined with the summary of metallogenic characteristics, we constructed a geological model for ore prospecting in the Huili copper orefield.

Keywords: ore prospecting prediction model, mineral exploration, Huili copper orefield, volcanogenic massive sulfide deposits

Funding: this study was supported by National Key Research and Development Program of China (2017YFC0601506), National Nature Science Foundation (42002102) and Geological Survey Project of China Geological Survey (DD20190570). We thank Tianzhu Ye for his kind guidance throughout the study.

For citation: Lin Lujun, Chen Hui, Pang Zhenshan, Cheng Zhizhong, Xue Jianling, Tao Wen, Ma Yixing, Gong Lingming, Shen Hongtao. The ore prospecting prediction model for the Huili copper orefield in Sichuan Province, China. Nauki o Zemle i nedropol’zovanie = Earth sciences and subsoil use. 2021;44(4):417-432. https://doi.org/10.21285/2686-9993-2021-44-4-417-432.

* The article was provided by the Earth Science Frontiers journal within the framework of the agreement between the editorial boards of Irkutsk National Research Technical University (Irkutsk, Russia) and China University of Geosci-ences (Beijing, China) on the exchange of open access scientific papers.

Научная статья УДК 554.041+004.94

Модель прогнозирования поисково-разведочных работ на меднорудном месторождении Хойли в провинции Сычуань, Китай*

Луцзинь Линь3, Хуй Чэньь, Чжэньшань Панс, Чжичжун Чэн^ Цзяньлин Сюее, Вэнь Таог, Исин Мад, Линмин Гун11, Хунтао Шэнь’

аИнститут геофизических и геохимических исследований Китайской академии геологических наук, г. Ланфан, Китай

ь~едНаучно-исследовательский центр, Геологическая служба Китая, г. Пекин, Китай ь-вЦентр технического руководства по разведке полезных ископаемых, Министерство природных ресурсов Китайской Народной Республики, г. Пекин, Китай >,’Сычуаньское бюро геологии и минеральных ресурсов, г. Эмэйшань, Китай Автор, ответственный за переписку: Чэнь Хуй, cgschenhui@163.com

Резюме. На основе глубокого изучения 129 типичных месторождений Китая была разработана теория прогнозов и методология разведки руд и подтверждено, что это эффективный метод, особенно подходящий для начальных этапов разведки руды. В этом методе внутренние и внешние факторы металлогенеза объединяются для построения геологической модели прогноза поисковых работ, которая включает металлогеническое геологическое тело, металлогеническую структуру, металлогеническую структурную плоскость и металлогенические характеристики. Район Хойли расположен на западной окраине плиты Янцзы, где региональные металлогенические геологические условия превосходны, в связи с чем здесь сформировалась серия уникальных железно-медных месторождений. В последние годы большие успехи были достигнуты в глубоких и периферийных областях меднорудного месторождения Хойли. В статье меднорудное месторождение Хойли обсуждается в качестве типичного примера, позволяющего проиллюстрировать конкретное применение разработанного метода при поисках глубоких руд гидротермальных месторождений. Металлогеническое геологическое тело — это рудовмещающие вулканические породы (альбитит в группе Хэкоу), а основная металлогеническая структура и структурные плоскости представляют собой границы раздела между основными (средними) вулканическими породами, осадочными породами и возможным вулканическим жерлом. В сочетании с обзором металлогенических характеристик авторы построили геологическую модель для разведки руд на меднорудном месторождении Хойли.

Ключевые слова: модель прогноза поисково-разведочных работ, разведка полезных ископаемых, меднорудное месторождение Хойли, вулканогенные месторождения массивных сульфидных руд

Финансирование: исследование выполнено при поддержке Национальной ключевой программы исследований и разработок Китая (2017УРС0601506), Национального фонда естественных наук (42002102) и Проекта геологической разведки Китайской геологической службы (0020190570). Авторы выражают благодарность Тяньчжу Е за руководство на протяжении всего исследования.

Для цитирования: Линь Луцзинь, Чэнь Хуй, Пан Чжэньшань, Чэн Чжичжун, Сюе Цзяньлин, Тао Вэнь, Ма Исин, Гун Линмин, Шэнь Хунтао. Модель прогнозирования поисково-разведочных работ на меднорудном месторождении Хойли в провинции Сычуань, Китай // Науки о Земле и недропользование. 2021. Т. 44. № 4. С. 417-432. https://doi.org/10.21285/2686-9993-2021-44-4-417-432.

Since the 21st century, with ore prospecting turning deep, the orientation prognosis of deeply concealed orebody has turned to be the scientific frontier of current ore prospecting and prediction worldwide, and it is also one of the main difficulties and hot research topics in the fields of deposit exploration and mineral deposits. Over the

years, many domestic experts and scholars have proposed various metallogenic prediction theories and methods. Here are some representative ones. (1) There are similar analogy and geological anomaly theories [1-5]. According to natural theories and laws, it is considered that similar geological environments and metallogenic conditions could form similar deposits. (2) Deposit

* Статья была предоставлена редакцией журнала Earth Science Frontiers в рамках соглашения между редакциями Иркутского национального исследовательского технического университета (г. Иркутск, Россия) и Китайского университета геологических наук (г. Пекин, Китай) об обмене научными статьями открытого доступа.

metallogenic series theory [6-8]. This theory mainly focuses on a group of deposit type combinations whose formation time, location, and genesis are closely related under the dominant geological mineralization in a specific geological period and geological environment. (3) Metallogenic system theory [9]. It organically combines the tectonic system, fluid system, chemical reaction, and deposit localization mechanism. It analyzes all the geological elements and the metallo-genic process that control the formation, variation, and preservation of the deposit and the integration of the deposit series and anomaly series in terms of the dynamic evolution of mineralization. (4) Ore deposit model theory [10]. It conducts genetic model research for different minerals and ore deposit types and uses the genetic model of known deposits to carry out the metallogenic prediction and guide prospecting and exploration in unknown areas. (5) Prospecting prediction theory and methodology in exploration area [11-13]. Since the beginning of the 21st century, through implementing the national crisis mine prospecting project, especially the in-depth study of 129 representative deposits over five years, the scientific research team headed by Professor Ye Tianzhu, has made great efforts in theory and method of large-scale prospection prediction. Combining the theories of geochemistry, mineralogy, and mineral deposit with the examples of major types of mineral deposits, a framework of exploration-area prospecting prediction theory and methodology is successfully constructed. Starting from combining internal factors (geochemical characteristics of elements) and the external factors (types of geological processes) of mineralization, a geological model of prospecting prediction is constructed, mainly composed of a metallogenic geological body metallogenic structure, metallogenic structural plane, and metallogenic characteristics. This method-technology system is supported by geochemistry theory, mineral deposit theory, element geochemistry experiment data, and mineral experiment data and formed based on many typical deposit research data and exploration project practice verification. It is an effective method especially suitable for initial prospecting and exploration. Summarizing and integrating the achievements obtained, they compiled the Prospecting

Prediction Theory and Methodology in Exploration Area [12, 13], which systematically summarized the fundamental prospection prediction theories, and initially established prospecting prediction models for China’s 25 main deposit types. This method has been tested in practice and preliminarily solved the critical problem of mineral exploration.Located in the western margin of the Yangtze Plate, the Huili area of Sichuan Province has superior metallogenic geological conditions, and formed a series of unique iron-copper deposits. In recent years, using the prospecting prediction theory and methodology in exploration area, major prospecting breakthroughs and progress have been achieved in the deep and periphery of the Huili copper orefield. Here taking it as a typical example, we expound the prospecting prediction theory and methodology and its application process in order to start further research and discussion on improving the success rate of deep prospecting.

The Huili area is located in the middle section of the SN-trending Sichuan — Yunnan passive continental margin rift system in the western margin of the Yangtze Plate (Fig. 1, a). This rift system is more than 1200 km long from north to south and about 150-250 km wide from east to west. The northern section extends in a NE-SW direction. It lies between the Longmenshan fault (Beichuan — Yingxiu) and the Longquanshan fault on the west side of the central Sichuan continental core. The middle section (Xichang area) and southern section (central Yunnan area) situated between the Anninghe — Lvzhijiang fault, the Leibo fault, and Xiaojiang fault extends in SN direction, with some areas crossing the Xiaojiang fault eastward to the Liupanshui fault zone in western Guizhou [14].

Except for the Ordovician and Carboniferous strata, the strata ranging from Paleoproterozoic to Cenozoic are distributed, especially the Prote-rozoic and Mesozoic strata. The regional strata mainly consist of Pre-Sinian, Sinian to Silurian, Permian, Triassic to Cretaceous, and Cenozoic. Among them, the pre-Sinian Hekou Group is the main copper-bearing horizon in this region (Fig. 1, b). The Hekou Group is a marine volcanic sedimentary rock series deposited in a continental

Fig. 1 Geotectonic location of the Huili area (modified from [20]) (a); Geological sketch map of the Huili orefield (modified from [21]) (b) Рис. 1. Геотектоническое положение района Хойли (по источнику [20] с изменениями) (а) и геологическая схематическая карта рудного поля Хойли (по источнику [21] с изменениями) (b)

margin rift environment. According to its eruption characteristics, it can be divided into three tectonic cycles, namely, Dayingshan Formation, Luodang Formation, and Changchong Formation, which are composed of a series of meta-morphic clastic rocks and volcanic rocks. Previous geochronology studies show that the Hekou Group was formed in the early Proterozoic (ca. 1700 Ma: [15-19]). The magmatic activity in this region is intense and has the characteristics of multi-cycle and multi-period, including the Jin-ning, Chengjiang, Variscan, and Indosinian periods. A series of anticlinoria, synclinoria, and thrust faults dominated by EW orientation followed by SN strike were formed due to the superposition of different periods and different types of tectonic events since the Huili period. Therefore, this region has a double-layer structure, with the lower layer forming the lower fold basement and developing the EW-striking fold and the upper layer constituting the upper fold basement and developing the SN-striking fold.

The Huili copper orefield is located in Huili County, Sichuan Province. It is an essential large copper deposit in SW China and is the most extensive copper production base in Sichuan Province. Structurally, it lies on the west side of the southern part of the secondary Shuangshibai-xiang anticline, which belongs to the southern limb of the Hekou anticlinorium (Fig. 1, b). In the past decades, more than ten major ore deposits (spots) have been discovered, including two large deposits (Luodang and Hongnipo), two medium-sized deposits (Shilong and Laoyanghantangou), with the rest of small deposits and spots. The cumulative proven copper resources of this orefield reach 1.74 million tons.

The Paleoproterozoic Hekou Group, Meso-proterozoic Huili Group, and Triassic Baiguowan Formation are widespread in this region. The bottom of the Hekou Group is intruded extensively by gabbro, and no underlying strata are seen. The Tongan Formation of the Huili Group is exposed in the west of the region and is in fault contact with the Hekou Group. The Baiguowan Formation is predominantly distributed in the southern part of the mining district, with sporadic distribution in the northwest corner of the district. They

are controlled by SN-trending fault and are unconformable with the underlying Hekou Group. The Hekou Group is a set of volcanic-sedimentary metamorphic rocks, the main ore-bearing formation in this area. Based on the formation characteristics, it can be divided into three different volcanic eruption-sedimentary cycles. Each cycle starts with normal deposition and ends with the end of volcanic eruption deposition. The earliest volcanic eruptions were mainly potassic, rich in potassium and poor in sodium, including potassium feldspar quartz granulite and potassium feldspar-bearing quartz albitite. The last volcanic eruption contains more sodium but less potassium, such as albite granulite and quartz albitite. All volcanic eruptions show in the three cycles of the formation the characteristics of underdeveloped agglomerates. That indicates that the volcanic eruptions in this area are dominated by a relatively quiet fissure-type eruption, which is consistent with the fact that volcanic rocks distribute alongside the F1. Huili orefield is located between the regional nearly SN-trending F13 and F29. F13 is a reverse fault, striking 10-20° NE and dipping 70-85°. Its hanging wall has the nature of shifting northward. F29 is also a reverse fault, with strike of 30° NE and a decreasing dip angle from 70-85° on surface to 30-40° in the deep. Between F13 and F29, the gentle Shuangshibaixiang anticline and the Hongnipo syncline have similar orientation of 20° NE, and are separated by nearly EW-striking F1. The east and west ends of F1 are restricted by F13 and F27, respectively, with a strike of 60-80°, a fracture width of 10-30 m and a maximum vertical fault distance of 325 m. It has the nature of reverse fault in the early period, and the nature of normal fault in the later period. The strata of the west limb of the Shuangshibaixiang anticline incline to the southwest, dipping 30-40°, while the strata of the east limb of it incline to the southeast, dipping 30-40°. The southern part of the Shuangshibaixiang anticline comprises a series of small anticlines and syn-clines, mainly including Luodang anticline, Lao-yanghantangou syncline, Laohushan anticline, Xiaochang syncline, Zhaizhiqing anticline from west to east. To the eastern part of the Hongnipo syncline, there are the small Xinlaochang anticline and Shilong syncline (Fig. 1, b).

The magmatic activity is intense and widely distributed in Huili orefield. The Hekou volcanic rocks constitute the ore-bearing horizon of this district. The intrusive rocks exposed here are mainly gabbro, followed by basic dyke rocks, intrusive breccias, etc. Gabbro is a basic intrusion that is widely exposed in this area. There are more than a dozen gabbro rock masses, dykes, and sills here. Gabbro swarm is dark green, with fiber columnar, gabbro, diabasic textures, and a massive structure. Its distribution is mainly controlled by faults. The gabbro intruded along with Fi and the intersection of Fi and F13 and was exposed in the area of Luodang — Laohushan -Laoyanghantangou — Shilong (Fig. 1, b). Granite porphyry is relatively rare in the vicinity of the mining district. It is light flesh red, with a holocrys-talline porphyritic texture. The fissure caused by stress is filled with quartz veins. Besides, many late dykes within the mining area, including diabase, diorite, and lamprophyre, with thickness ranging from tens of centimeters to several meters. They are widely distributed, controlled by faults, joints, and fissures. Moreover, it is worth noting that they are obliquely interspersed with stratification, crosscut, and destroy orebodies.

The Luodang deposit is located in the area constrained by Laoyatian in the west, Sirentai-qiao in the east, Shaofangliangzi in the north, and Lantianwan Fi in the south. Copper orebodies mainly occur in the upper and middle part of the Luodang Formation, with the economic ones primarily hosted in quartz albitite and biotite quartz schist. The upper ore-bearing section is mainly distributed in the axis of the Huili syncline, where the Luodang orebody occurs. The ore-bearing rocks are mainly interbedded biotite quartz schist and quartz albitite. The copper reserves in this section account for more than 50 % of the entire mining district. The middle ore-bearing section is widely distributed in the district. However, no economic copper orebody has been discovered. The ore-hosting rock is dominated by thick gray massive quartz albitite with a small amount of muscovite quartz schist. The ore-bearing rocks in the lower section consist of abundant garnet biotite schist and minor quartz albitite, and mica schist. They are gray with palimpsest texture and massive structure. There are only a few surface outcrops of copper orebodies in the Luodang

deposit, and most of them are concealed or semi-concealed. Whereas. The orebodies in this block have relatively good stability and extensibility, distributing within an area of 1900 m long from east to west and 900 m wide from north to south. There are 32 orebodies in this block, four of which are longer than 1000 m. The thickness of them ranges from 3 to 20 m. The scale of them varies greatly, extending from 80 to 1960 m in a strike, from 43 to 525 m of the average single orebody in inclination, and from 1.6 to 30.71 m in average vertical thickness (Fig. 2). In addition, these ore-bodies show obvious expansion, contraction, and cross compound phenomena. Ore mineralization is relatively uniform in this block. The copper grade is general 0.67-1.26 %, with an average of about 0.9 %.

Construction of the geological model of prospecting prediction

The genetic type of the Huili orefield. Study on the Huili orefield began in the early 1990s. Since then, a lot of research has been carried out in terms of deposit geology, geochemistry, diagenesis and mineralization age, ore-forming fluids, and ore-forming material sources [15, 18, 19, 2338]. In the beginning, most researchers proposed that the Huili copper deposit is a VMS-type deposit on the basis of being syngenetic with the marine volcanic hosting strata, stratiform and stratoid orebodies, abundant strata-bound sulfide minerals, sulfur and lead isotope showing ore-forming materials derived from the Hekou Group [22, 27, 28]. Some researchers also suggested that the Jinning movement and diabase emplacement might have promoted the reactivation and enrichment of metallogenic elements [30, 39]. Besides, since 2000, some scholars have put forward that the Huili copper orefield is an IOCG deposit based on the evidence of strong albitiza-tion, large amounts of Ti-poor magnetite and enrichment of Co, Au, P, F, REE, etc. Subsequently, much more attention has been paid to the possible IOCG properties of the Huili orefield. To date, numerous studies have shown that the Huili ore-field possesses the characteristics of representative IOCG deposit, including extension environment of intraplate rift, magmatic and stratigraphic sources of ore-forming fluids, and materials [32], extensively pervasive Na, Na-Ca and K

Lin Lujun, Chen Hui, Pang Zhenshan, et al. The ore prospecting prediction model.

third layer of upper Member ofLuodang Formation

second layer of upper Member . of Luodang Formation

first layer of upper Member of Luodang Formation

i fifth layer of lower Member of Luodang Formation

fourth layer of lower Member . of Luodang Formation

third layer of lower Member . of Luodang Formation

second layer of lower Member of Luodang Formation

Na ] quartz albitite

muscovite-quartz schist quartz-muscovitc schist

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Sichuan AI-Link Technology Co., Ltd. — это WiFi-чипы, устанавливаемые в китайскую бытовую технику: роботы-пылесосы, «умные» холодильники, ж/к телевизоры и прочее.

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