Geologic NewMexico byFrankE.Kottowski, Director, NewMexico Bureau of Mines& MineralResources, NM Socorro, This Land of Enchantment,New Mexico, is blessedwith almost every conceivablegeologicfeaturerangingfrom the desertvalleysand basinsof the south to the bare-rock alpine slopes of Mount Wheelerand TruchasPeaksin the north. Rocksof everygeologicperiodeithercrop out at the surfaceor occur in the subsurface. Not only is the geologyof New Mexico interestingscientifically,but it is also the sourceof the state'sbeautyand of much of its wealth. Outstandingattractionsincludethe gypsumdunesof White Sands, the immensecavesof CarlsbadCaverns, the picturesquebadlandsin the SantaFe Formation near SantaFe and Espaflola, the Rio Grande gorge cut through the Taos Plateaubasalts,the awesomesizeof Valle Grande (a barely extinct volcanic caldera),the stark rock spireof Shiprock, the symmetryof CapulinMountain (a Recentvolcano),salt-encrusted twigsin Zuni Salt Lake, and the gnarled,wrinkled Recent basalt flows near Carrizozoand McCarty. Man has addedother scenicattractions in his developmentof natural resources. Theseinclude the flow of water from an 8-inch pipe that sustains agricultural fields in the state's irrigated basinswater derivedonly from snow falling in the southernRockiesand the Sangrede Cristo Mountains, thence melting and flowing downstreamto the river valleys and the alluvium along the Rio Grande, the Pecos,and other rivers.Many visitors enjoythespectacular multi-coloredbeauty of the Santa Rita and Tyrone open-pit copper mines and the open-pit Questa molybdenummine, as well as the more drab coloration of the Paguateopen-pit uranium mine and the large open-pit coal mines. In the latter, the huge draglines towering more than 250 ft above the ground resemblethe gigantic dinosaurs that once roamed these landscapes?0 million years ago. The night lights of petroleumdrilling rigs in southeastand northwest New Mexico reflect development of natural resources,as do the windmills and waterpumps of the irrigated areas.The shaftsof the present-daypotash minesin the southeast,the uranium mines in the west-centralarea, and the base-metalminesin the southwestbustle with activity. Dotted throughout the mountainous areas are abandonedmine headframesthat tell of riches won from 2 February 1979 New MexicoC,eology the earthduringthe state'shistoricpast. If we had the forestsprimevaland untouchedgrasslands-withoutthe production of metals, industrial rocks and minerals,and fuels-we would not have the brilliant spectacleof Albuquerqueas seenat night from Sandia Crest, or the jewel of SantaFe lit up at the foot of the Sangrede Cristo Mountains on a clear, crisp winter night. Cities, people, everything concerned with the American-NewMexicanway of life, evenin the quiet isolatedvillages,is tied to the use of mineral and fuel resourcesabundantlyavailableand abundantly producedin the Land of Enchantment. In 1978the state'smineralproduction exceeded$3 billion, with about 15 percent accruing to the State and its politicalsubdivisions in the form of taxes, bonuses,royalties,and rentals.Thus, the geologyof the state-the rocksat the surface and in the subsurface-provideNew Mexicowith much of its wealthas well as its scenicbeauty. Much is known about the state'sgeology but much more awaitsto be known, offering challenging problems that require the utmost in scientific investigation, the resultsof which provide a very necessaryserviceto all of us. Scientific studiesare worthwhile only when made availableto other scientistsand laymen. Too, the catalogingand storing of geologic specimens is importanttoday as well as to future generations.Thesematerials include cuttings from significantexploratory wells, fossils, mineral specimens, and rock samplesthat illustratethe complexityof New Mexicogeology. Much scientific and technicalinformation on the geologyand mineralresources of the stateis being generatedby and is availablefrom a number of sourcesincludingthe New MexicoBureauof Mines and Mineral Resources,the U.S. Geological Survey, the University of New Mexico,New MexicoStateUniversity,the New Mexico Water ResourcesDivision, the New Mexico Division of Mining and Minerals, the American Association of Petroleum Geologists, the Geological Society of America, the Society of Economic Geologists,the New Mexico Geological Society, the Four Corners GeologicalSociety,and others. The goal of New Mexico Geologyis to inform geologistsand all other interested personsof current geologic publications and conferences, and, on a regularbasis, publish short articlesthat provide scientific insight on the variousaspectsof the state'sgeologyand mineraltechnology.I A L S OI N T H I SI S S U E : New methods of working an old mine R e l i a b i l i t yo f g o l d a n d s i l v e ra n a l y s e s M e e t i n g s ,p u b l i c a t i o n s ,a b s t r a c t s p, 7 p. 11 p. 11 C O M I N GS O O N : o o o o o H a n s o n b u r gM i n i n g D i s t r i c t Montezuma Hot Springs M i n i n g ,m i l l i n g ,a n d s m e l t i n g Coal resources N e w p u b l i c a t i o n sa, n n o u n c e m e n t s , abstracts, reviews New AAexnc@ GEOLOGY . Scionco andSorvico Volume 1, Number 1, February 1979 Editor.' Neila P€rson publish€d quarterly by Nry Mexico Bur@uof Min6 & Mineral Resources a divisionof Nw Mexicolnstitut€ of Mining & Ttrhnology BOARD OF REGENTS Ex Officio Brue King, Goverzor oJ NewMuico Lmnard Delayo, Slperinlendenl oJ Public Irctilction Appoint€d willimG. Abbott, l l-1979,Hobbs L6 Cruc6 Judy Floyd, 1977-1981, SantoFe Owcn Lopcz, Ssty/Trw, 1977-1983, Davc Rice,Pres. 1972-198t,Cqrbbsd SteveT0116,l 7-1919,Suorro Nry Mexico Instituteof Mining & Tchnology .....Kcmethw. Ford Prwdeil. N€w Mexico Bur@u of Mina & Mineral Roourco ...FrankE.Kottlowski Dirrlor. DeputyDiretor. .........Ceorges.Austin Bumu EditoFceologist . . . . . . . -. . . . Robqt W. Kelley quart€rly, Subrcriptiod: Issucd February, May, August, Septcmber;subscriptionprice $3.m/yr, Editoriol motter: Cotrtributions of possiblerorcrial for considqation in future issua of NMO ue welcome, Materia.ls €nnot be returned unl6s accompanied by retun pctage. Addrss inquirim to Neila Peuson, Editor Nry Mexico G@logy, Nw Mexico Bursu of Mines & Mircral R6ourc6, SEorro, NM tTEOl Cirillstion: l.2N Prirter.' University of New Mcxico Printing Plant