Cores and Samples Center of Land & Resources (CSCLR, hereinafter) is a non-profit institution directly under China Geological Survey; it meanwhile serves as China’s national depository library of drilling cores and geological samples, and mainly focuses on the collection, management, research, development, and utilization of important drilling cores and geological samples nationwide. It provides the government with decision-making and technical support as well as serves the public with non-profit geological data.

The first building of the National Cores & Samples Archives (i.e., another name of the CSCLR) was finished in 2004, with a gross floor area of 5,613 square meters; and in 2014, the second was finished with 6,300 square meters. It holds two storehouses with totally 10,920 storing shelf positions, which can hold about 600,000 m cores. At present, CSCLR has realized three-dimensional storage and automated management for the cores and samples; Both the scale and  facilities are of first grade in domestic China and are of advanced level internationally. There are Microscopic Study Room, Scanning Room, Electronic Reading Room, Exhibition Hall and other essential facilities in CSCLR , which can offer multiple services to the public.

The Outdoor Samples Exhibition Square, covering about 20,000 square meters, was completed in 2011. Along the wandering lanes of  the Square, visitors can enjoy 260 large rocks and ore samples, collected from 125 mines covering China’s 20 odd provinces (autonomous regions and municipalities). The rocks and ore samples include: non-ferrous metals, ferrous metals, precious metals, rare metals and non-metallic ores. Each sample has bilingually been labeled in details in both Chinese and English with its mineral name, locality, genetic type, mineral composition, structure characteristic and ore bearing grade. The explanations can benefit the professionals, college teachers and students as well as the general public in learning different mineral characteristics and mineral resource situations in China, enhancing their knowledge in mineral resources, as well as improving their awareness of resources protection.

In recent years, CSCLR has increasingly enriched its collections of cores and samples according to typicality, representativeness, exclusiveness, and systematicity, and has meanwhile focused on the utilization valueand essentiality. By the end of September 2015, CSCLR has totally collected 447 types of cores and samples, including 659 boreholes (the total core length 344,194 m), 12,000bags of rock chips, 17,352 ordinary specimens, 260 large-scale ore samples, 40,298 thin sections, and 226 items of samples. All these cores and samples (thin sections) are collected from scientific drilling and oil-gas exploration sites(cores and debris), typical metallic mines(drilling cores and specimens), regional geological survey in Qinghai-Tibetan Plateau (samples and slices of 1:250,000, 97 map sheets, 1,500 measured sections), China’s 10 “Golden Spikes” prototype (sections and columnar samples), 100 key coal mines (226 samples), polar regions geological surveys, and overseas geological surveys. Thus, a national archives treasury system has initially taken shape with the main collections from typical mines and regional geological surveys, and are highlighted with those from CCSD as well as the “Golden Spikes”.

Over the last decade, CSCLR has collected a series of important cores and samples, and has made them  effectively managed and scientifically utilized as well. CSCLR has been digitalizing the stored cores and samples to develop various  service products. Besides, CSCLR has organized the construction of national borehole database to support the geological exploration and social economic development. At present,CSCLR has been nominated as “Land & Resources Science Popularization Base”, “Monitoring and Testing Center for Cores, Samples and Coal Qualities”, and “Qinghuangdao Sea-level and Ground Deformation Survey Station (Field-based Geosciences Research Station)” by Ministry of Land & Resources, and “Information Technical Research Center of Cores and Samples” by China Geological Survey, and Teaching & Practice Base by multiple universities.