Maine Geological Survey: Maine's Mineral Resources
15/02/2019· Significant Metal Deposits - Prospectors have searched for metals in Maine since the 1800's. During a flurry of excitement in the early 1880's, metal deposits were mined along the coastal volcanic belt from Blue Hill to Lubec. Extensive manganese deposits were delineated during World War II.Maine Geological Survey: Metallic Mineral Deposits,24/01/2013· The Metallic Mineral Deposits of Maine map (PDF 0.7MB) shows locations of known metallic mineral occurrences on a generalized geologic map of Maine. The information is taken from the Maine Mineral Resources database of the Maine Geological Survey. That database includes more information about the occurrences that are shown on the map, and also includes many non-metallicMaine Geological Survey: Metallic Mineral Deposits,The Metallic Mineral Deposits of Maine map (PDF 0.7MB) shows locations of known metallic mineral occurrences on a generalized geologic map of Maine. The information is taken from the Maine Mineral Resources database of the Maine Geological Survey. That database includes more information about the occurrences that are shown on the map, and also includes many non-metallic mineral occurrences,Interactive map of mineral resources in Maine | American,,The Maine Geological Survey's interactive map provides a range of mineral resource information for the state of Maine. The map allows users to explore Maine's significant mineral commodities, mineral deposits, selected historical mines, and more. Much of the data can be downloaded for further use and analysis. Click here to access the Maine mineral resources interactive mapMaine Geological Survey: A Collector's Guide - Chapter 2,06/10/2005· Alluvial and Beach Deposits. Alluvial mineral deposits, also known as placers, are those which occur in sand and gravel laid down by running water. "Alluvium" includes both modern stream sediments and those deposited during relatively recent geologic time (as opposed to the older, indurated sedimentary rocks). The alluvial deposits of most interest in Maine are the gold placers. Gold hasSignificant Known Metallic Mineral Deposits in Maine,Significant Known Metallic Mineral Deposits in Maine including approximate tonnage and grade1 Northern Maine belt (in alphabetical order) *Alder Pond - 3.4 MT massive sulfide, of which 0.8 MT grades 2-3% copper, 9-17% zinc, 0.5-1.0% lead, and 3-6 oz/ton silver.
Mining In Maine | The Diggings™
The most commonly listed primary commodities in Maine mines are Silver , Copper , and Lead . At the time these mines were surveyed, 174 mines in Maine were observed to have ore mineralization in an outcrop, shallow pit, or isolated drill hole—known as an occurance mine. 1 Maine has 292 prospect mines. 2 319 mines were in production at the time the data was entered into USGS records.Mining and Quarrying in Maine: Explore Maine Geology,,05/11/2015· The Maine Geological Survey maintains a repository of rock core obtained by diamond drilling for mineral exploration projects over many years. In addition to the physical rock core that have been donated to the Maine Survey, there are associated paper records, which include such things as maps of drill core locations, technical logs of drill core, and a limited amount of geochemical andMaine’s Geology and,Geology of Maine and New Brunswick. Hibbard and others, 2006, Lithotectonic map of the Appalachian orogen. Significant Mineral Deposits. Bald Mountain: 30 MT Cu, Zn, Au, Ag Alder Pond: 3 MT Zn, Cu, Pb, Ag Warren Nickel Harborside and Second Lake: Mined inMaine Geological Survey: Maine's Mineral Resources,Maine Mineral Resources Data System - This database was produced by the Maine Geological Survey in 2009. It was derived from the U.S. Geological Survey's Mineral Resources Data System (MRDS). MRDS is a worldwide database of mineral site records with related geologic, commodity, and deposit information. The USGS data were combined with records,Maine Geological Survey: Maine's Mineral Resources,Maine Mineral Resources Data System - This database was produced by the Maine Geological Survey in 2009. It was derived from the U.S. Geological Survey's Mineral Resources Data System (MRDS). MRDS is a worldwide database of mineral site records with related geologic, commodity, and deposit information. The USGS data were combined with records,Maine Geological Survey: Mineral Collecting in Maine,14/03/2012· An Introduction to Mineral Collecting in Maine. Maine has an excellent reputation among "rockhounds" for the variety and quality of mineral specimens found within its borders. Hundreds of people explore the state each year in search of crystals, semiprecious gems, gold, and other minerals. The novice is practically assured of finding something of interest at Maine's collecting sites, while a,
Metallic Mineral Deposits in Maine - nrcm.org
Very large deposits of volcanic and sedimentary rocks (shown in yellow) are spread throughout the state. Volcanic and sedimentary deposits often hold massive sulfide deposits, which are what open pit mining companies will be looking for in Maine. These metallic mineral deposits are located near some of Maine’s most precious natural areas,Maine Geological Survey: Mining and Quarrying,29/02/2016· Tourmaline is the official State Mineral of Maine, and the most valuable and highly sought-after gem material that can be found here. Gem tourmaline has been mined in Maine since the 1820's, and the oldest location (Mt. Mica in Paris Hill) is still producing today. Tourmaline is actually a group of minerals having various colors and compositions. The black iron-rich schorl is most common in,"Overview of Maine Metallic Mineral Deposits and,01/01/2015· Topical Reports on Maine Bedrock Geology; Mineral Resources and Mining Reports Recommended Citation Marvinney, Robert G., 2015, Overview of Maine Metallic Mineral Deposits and Mining: Maine Geological Survey, Circular 15-9, 10 p..Maine Pegmatites - Mineralogical Society of America,The pockets of the Maine pegmatites are largely secondary, produced by dissolving activity of the same ascending solutions which deposited the rare minerals of the second and later classes. INTRODUCTION. The granite pegmatites of central Maine have been described in some detail by Bastin. 1 The present paper presents the results of a more detailed investigation of two recently opened deposits,Maine - USGS,Maine is the northernmost and least densely populated state in the contiguous United States east of the Great Lakes. It is known for its jagged rocky coastline; low rolling mountains; heavily forested interior and picturesque waterways. Geologists describe this type of landscape as a "drowned coast", where a rising sea level has invaded former land features, creating bays out of valleys. New,Mining and Using Minerals - Earth Science in Maine,After a mineral deposit is found, geologists determine how big it is. They outline the deposit and the surrounding geology on a map. The miners calculate the amount of valuable minerals they think they will get from the deposit. The minerals will only be mined if it is profitable. If it is profitable, they must then decide on the way it should be mined. The two main methods of mining are,
§6662. Extinguishment of mineral rights - Maine Legislature
A. "Mineral" means all naturally occurring mineral deposits, including hydrocarbons and peat, but excluding sand, gravel and water. [PL 1983, c. 189 (NEW).] B. "Mineral interest" means the interest in minerals which is created by an instrument transferring by grant, assignment, lease or otherwise, any interest in any mineral.Maine Mineral Resources - Significant Metal Deposits,Maine Mineral Resources Data was produced by the Maine Geological Survey in 2009. It was derived from the U.S. Geological Survey's Mineral Resources Data System (MRDS). MRDS is a worldwide database of mineral site records with related geologic, commodity, and deposit information. The USGS data were combined with records from the Maine Geological Survey'sMetallic Mineral Deposits in Maine - nrcm.org,Very large deposits of volcanic and sedimentary rocks (shown in yellow) are spread throughout the state. Volcanic and sedimentary deposits often hold massive sulfide deposits, which are what open pit mining companies will be looking for in Maine. These metallic mineral deposits are located near some of Maine’s most precious natural areas,"Overview of Maine Metallic Mineral Deposits and,01/01/2015· Recommended Citation. Marvinney, Robert G., 2015, Overview of Maine Metallic Mineral Deposits and Mining: Maine Geological Survey, Circular 15-9, 10 p..Mining – Maine: An Encyclopedia,In addition to tourmaline, the amazing vein contained one quarter of all the mineral types known in Maine. Mining at Dutton ended in 1974, when the deposits were exhausted; the landowner collapsed the tunnels as a safety precaution. Monson and Brownville, both in southern Piscataquis County, were famed for their high quality slate. In fact Brownville’s won first prize at the 1876 Centennial,Maine Pegmatites - Mineralogical Society of America,The pockets of the Maine pegmatites are largely secondary, produced by dissolving activity of the same ascending solutions which deposited the rare minerals of the second and later classes. INTRODUCTION. The granite pegmatites of central Maine have been described in some detail by Bastin. 1 The present paper presents the results of a more detailed investigation of two recently opened deposits,
Geology of Maine - Wikipedia
Maine's first State Geologist, Charles T. Jackson, sketched a diagram of the site's limestone, greenstone trap-rock and veins of galena during an 1837 visit. The site is still open for amateur mineral collecting, although the State of Maine advises extreme caution as a result of potential flooding from high tides.USGS: Mineral Resources On-Line Spatial Data: mineral,,Lithochronologic units and mineral deposits of the Appalachian Orogen from Maine to Alabama. Geologic age, lithology, faults, and mineral deposit information (major deposits and those smaller deposits thought to be representative of the metallogenic character of the area). Info: Map showing areas with potential for talc deposits in the Gravelly, Greenhorn, and Ruby ranges and the HenrysThe Plumbago North pegmatite, Maine, USA: a new,06/02/2020· A new spodumene-rich pegmatite was recently discovered on the north side of Plumbago Mountain, Oxford County, Western Maine. The site is about 1.5 km northwest of the famous Dunton gem tourmaline pegmatite. It is an albite-quartz-spodumene pegmatite containing gigantic crystals of spodumene and montebrasite. Some spodumene crystals are more than 11 m in length.Mining and Using Minerals - Earth Science in Maine,After a mineral deposit is found, geologists determine how big it is. They outline the deposit and the surrounding geology on a map. The miners calculate the amount of valuable minerals they think they will get from the deposit. The minerals will only be mined if it is profitable. If it is profitable, they must then decide on the way it should be mined. The two main methods of mining are,Marine Mineral Resource Evaluation | Bureau of Ocean,,Hurricane Sandy Cooperative Agreement, Maine Summary Report 2016; A microfossil evaluation of sediment deposits on the continental shelf, Merrimack Embayment, New England. Nathan, S., R. Leckie, and S. Mabee, 2007. Assessment of sand and gravel resources along the inner continental shelf of Maine: Years 1,2, Outer Saco Bay.,
