WaTEn RESOURCESINVESTIGATIONS O'Brien and W J. Stone, 1984:Ground Water, Newpublications v.22, no. 6, pp.717-727. 83-4l18-B-Maps showing ground-water levels, Volcanogenic-exhalativetungsten mineralization springs, and depth to ground water, Basin and T{MBMMR of Proterozoic age near Santa Fe, New Mexico, Range Province, New Mexico, by B. T. Brady, *Circular L90--The skull of Sphenacodon and implicationsfor exploration,by M. S. Fulp ferocior, D. A. Mulvihill, D. L Hart, and W. H. Lan- and comoarisons with other sphenacodontines Jr., andJ.L. Renshaw,1985: Geology, v.73,pp.66- ger, 7984,6 pp., 2 sheets,scale 1:500,000 (ReptiliaiPelycosauria), by D.-A. Eberth, 1985, 69. 83-411.8-C-Maps showing distribution of dis- 39 pp., 2 tables, 39 figs $4.00 in Virtually complete, disarticulated cranial re- solved solids and dominant chemical type New 0pen-filereports ma\nsof Sohenacodonferociorfrom the Cutler and ground water, Basin and Range Province, and NMBMMR Abo Formations (Lower Permian) of north-cen- Mexico,by T. H. Thompson, R. Chappell, scale *215--Evaluation tral New Mexico are described in detail for the D. L. Hart, Jr., 7984, 5 pp., 2 sheets, of laboratory procedures for de- first time. These descriptions provide the basis 1:500,000. termining soil-water chloride, by B. E. McGurk for the most detailedcomparisons to datewithin 83-41.18-D-Map showing outcrops of granitic and W. f. Stone,1985, 36 pp., 12 tables,2 figs. and the subfamily Sphen- rocks and silicic shallow-intrusive rocks, Basin $7.20 the genus Sphenacodon *21.9-Geology acodontinae. and RangeProvince, New Mexico, by F. A. Hills of the northeastern Gallinas *Circular l9l-Emlsonia cutlerensis,an Early Per- and K. A. Sargent(compilers), 1984, 28 pp., 7 Mountains, SocorroCounty, New Mexico, by L. '. mian dissorophid amphibian from the Cutler sheet,scale 1:500,000. A. Brouillard, 7984,772 pp., 6 tables, 34 figs., 1. Formationof north-centralNew Mexico, bv D. 83-4118-E-Map showing outcrops of thick, dom- pl. $35.90 *22t-Geology S Berman,R R Reisz,and D A. Eberth, i985 inantly argillaceoussedimentary rocks, Basinand and coal resourcesof the Techado Mexico, by W. D. 31 pp., 14 figs. $3 50 RangeProvince, New John- quadrangle, Catron and Cibola Counties, New Recently discovered specimens of the tem- son, Jr. (compiler), 7984,7 pp., 1 sheet, scale Mexico,by Brian Arkell, 1984,24 pp., 5 figs.,2 nospondyl labyrinthodont amphibian Ecolsonia 1:500,000. pls. $7.80 *222-Geology cutlercnsisVaughn (1969)allow a more complete 84-4052-Projected waterlevel declines in the of Veteado Mountain quadrangle, description of the amphibian's anatomy and a Ogallala aquifer in Lea County, New Mexico, west-central New Mexico, Catron and Cibola re-evaluation of its familial Dosition. prepared in cooperation with the New Mexico Counties, by Brian Arkell, 1984,20 pp., 2 ftgs., *Circular lgrlPecosorbis, a niw genus of fresh- State Engineer Office, 1984,84 pp. I pl. $5.s0 water snails (Planorbidae)from New Mexico, by D. W. Taylor,1985, 17 pp.,14 figs. s2.50 FourCorners Geological Society USGS This specieswas known previouslyonly as a Oil and gas fields of the Four Cornersarea, v. 3, *78-467-Geologic map of the Albuquerque 1" x 2" Pliocene fossil, but now is recognized in the 415pp.;7 special,14 general,and 95 field pa- quadrangle, northern New Mexico, compiled by of the southwestU.S. and is living Quaternary pers, 1984(to order,send $55.00 to FCGS,P.O. D. f. Wyant and A. Olson,7978,7 pl. (mylar in the PecosValley of New Mexico. Pecosorbisrs Box 1507,Durango, CO 81302). now availablefor reproduction). $2.25 unusual becauseof its restricteddistribution and *78-607-Preliminary geologicmap of the Socorro habitat in seasonalrock pools. Otherpublications 1" x 2' quadrangle, central New Mexico, com- *Circular l.95-Contributions to Late Cretaceous Micromarker in Permian Castile piled by M. N. Machette, 1978,1' pl. (mylar now paleontology and stratigraphy of New Mexico- beds the Upper Formation, Delaware Basin, west Texas and availablefor reproduction). $2.25 part 1, compiledby D. L. Wolberg,1985, 80 pp., southeastern Mexico,by Beth M. Madsen, 84-508-Availability of hydrologic data in Sanfuan 49 figs. New $6.00 1984: Petrology,v. 54, County, New Mexico,by R. L. Kausing and G. First in a series of circulars devoted to the Journal of Sedimentary no E. Welder, I98/, 776 pp. paleontology and stratigraphy of the Late Cre- 4, pp 7769-7774 *84-720--Annual in the water-resources review, White taceous(chieflv the Turonian-Maestrichtian in- The Mississippian-Pennsylvanianboundary PedregosaBasin, southeasternNew Mexico, by SandsMssile Range,New Mexico, By R. R. Cruz, terval) of New Mexico. Papers in this volume A. K. Armstrong, B. L. Mamet, and R. C. Bur- r9M,30pp $6.00 include: Shark vertebrae from the Upper Cre- ton, 1984: International de taceousPierre Shale, northeastern New Mexico; Neuvieme Congres Stratigraphieet de Geologiedu Carbonifere,vol. Newproject Depositional environments and paleontology of 2-Biostratigraphy, edited by P. K. Sutherland Lewis Shaleto lower Kirtland Shale.seouence USGS andW L Manger,pp.399-405. (Upper Cretaceous),Bisti area;Depositional en- 9570-03881-Thermochronoloqy, by J. F. Sutter. Petrology and geochemistry of the Paliza Canyon vironments of the Naashoibito Member of the The purpose of this project is to employ "high- Formation and the BearheadRhyolite, Keres Kirtland Shale,Upper Cretaceous,San Ba- precision" thermochronology techniques to study Juan Mexico, by sin; and Selachiansfrom the Atarque Sandstone Group, Jemez Mountains, New metamorphism, faulting, ore deposition, and Member of the TresHermanos Formation (Late K. P.Guilbeau andA. M. Kudo, 1985:Geological igneous activity, with special emphasis on the Society America, v.96, pp.108-113, Cretaceous:Turonian), Socorro County. of Bulletin, temporal resolution and duration of these pro- Geologic Map 59-Geology of South Peak quad- 3 tables, 5 figs. cesses.Projected completion date: 1989. Role in mod- rangle, Luna County, New Mexico, by R. E. Cle- of geologicaland geophysicaldata continuedon page42 mons, 1985 eling a southwestern alluvial basin, by K. M. (Will be releasedin summer, 1985;price will be publishedin the next issueof NMG.) NewMexico Geological Society news USGS The officerselected for 1985are Jerry Mueller, President,Kay Hatton, Vice President, Mlscrllarurous INVESTIGATTONSSERIES MAp I-1456-Geologic map and cross sections of the Mora River area, Sangre de Cristo Mountains, Mora County, New Mexico, by E. H. Baltz and J. M. O'Neill, 79M, \at. 35'52'30'to 36', long. 705"12'30' to 705"22'30", scale1 :24,000, 2 sheets. of the areawill be discussed.Travel will be by bus the first two days and by car the third PnornssroNal pApER day. Members should watch for announcementsof triP registration in early August. A questionnairewas sent to membersin March regardingthe inclusion of a subscriptionto l24l-C-Geology and geochronology of Precam- NewMexico Geology in NMGS dues. This subjectalso was included in the agendafor the brian rocks in the Central Interior region of the spring meeting. The area near Truth or Consequencesis being considered for the 1986 United States,by R. E. Denison, E.t. Lidiak, fall field conference.The executivecommittee welcomes volunteer participation in and M. E. Bickford,and E. B. Kisvarsanyi, 1984,20 suggestionsfor future NMGS events. pp., 1 map.

40 May 1985 Nm MexicoGeology tains fossil wood, seeds,twigs, and roots that have Abstracts been partially or completely replaced by the zeo- lites (Modreskiet al., 1983,Rocks and Minerals,v. New Mexico Mineral Symposium 59, pp. L8-281.Amygdules in basaltnear WoIf Creek The 5th annual Mineral Svmposium was held Pasiin Mineral anh-ArchuletaCounties, Colorado November 10-17, 7984,at New Mexico Institute (Hanner, 1976, Mineralo gy Record, v. 7, p. 272), con' of Mining and Technology,Socorro. Following are tain sprays of mordenite, plus heulandite, anal- abstractsfrom talks given at the meeting that con- cime,, and the rarebarium zeolite,wellsite. cern New Mexico. The numbers in parentheses The vesicles are lined with blue celadonite and refer to locationson the map. dark-brown, crystallized balls of nontronite, an -bearingclay mineral. In New Mexico, the most outstanding locality for well-crystallized zeolite MrNrnalocv or El Curnvo BurrE BARTTE- minerals is probably in andesitic lavas along the FLUORITE-GALENADEPoSTT, SoUTHERN SANTA east and middle forks of the Gila River, Catron (Haynes, 7983, Nan Mexico Fr CouNry, New Mrxrco, bv R. M. North and Grant Counties Geology,v. 5, pp. &t-85). Zeolites found here in- and V. T. Mclemore, New Mexico Bureau 2 clude mesolite, chabazite, stilbite, heulandite, an- of Mines and Mineral Resources, Socorro, r Cily alcime,levyne, thomsonite (white fibrous spheres), NM 87801(1) and gonnardite (white compact spheres). Several Barite-fluorite-galena veins occur along a fault zeolite species,including natrolite, tetranatrolite, in limestones, sandstones, and siltstones of the and analcime, occur as microcrystals in gas cavi- YesoFormation (Permian)and sandstonesof the ties of the phonolite sill at Point of Rocks, Colfax ------i Glorieta SandstoneMember (Permian) of the San County, Niw Mexico (DeMark, 1984,Mineralogy Andres Formation at El Cuervo (Crow) Butte in Record,v. 15, pp. 149-1.56),associated with other MINE, GRANT southern SantaFe County, New Mexico. The fault MrNEnals oF THE Alsalrena -rich and silica-poor minerals. Other zeo- dips steeply to the west and trends northeast. CouNrv, Nrw Mrxrco, by R. S. DeMark, lite occurrencesin basaltic lava flows include heu- Mineralization has been traced for almost 3 mi 6509Dodd Pl., Albuquerque, NM 87110(3) landite and white fibrous mordenite near La along the fault. Barite veins and pods up to 1 ft TheAlhambramine is locatedin the BlackHawk Madera, Rio Arriba County, New Mexico, and wide occur throughout the 3-5-ft-wide fault zone. mining district, which lies in the Big Burro Moun- phillipsite near Hunter Mesa, Colfax County, New Mineralized veins are common along fractures and tains of western Grant County. The minerals of Mexico. In alkalic intrusives, analcime and thom- bedding planes of Permian rocks adjacent to the the Alhambra mine form an assemblage that is sonite are reported from Wind Mountain, Otero fault A second, unmineralized fault occurs to the unioue not onlv to New Mexico but also to the County, New Mexico, and natrolite, thomsonite, west of the mineralized fault and separates the United States Initlally located by the discovery of stilbite, and analcirne are reported from South Park, Glorieta SandstoneMember from shales of the silver float in 1881,mining in the district ceased ParkCountv, Colorado. Natrolite and analcimeare ChinleFormation (Triassic). Barite is the dominant by 1893because of a decrea-sein the priceof silver. reported aialterations of nepheline in carbonatite mineral; however, fluorite and argentiferous gale- Since that time exploratory, developmental, and atlron Hill, Gunnison County, Colorado, and stil- na are common in pockets and zones within the mining efforts have been sporadic, and a negli- bite and analcimeare reported from altered nephe- veins. Other accessoryminerals include calcite, gible amount of silver has been produced The line in phonolite at Cripple Creek, Colorado. In quartz, sericite, feldspar(?), and a trace Black Hawk mining district is within the Burro skarn-type contact metamorphic deposits, stilbite, of chrysocolla. The barite is typically white or pink Mountainsbatholith (Precambrian),which is com- scolecite, chabazite, and laumontite, plus apo- and opaque,whereas fluorite is white, green, or posedprinarily of granite with inclusionsof gneiss, phyllite and prehnite, occur at Italian Mountain, purple and clearto translucent.Specimens of green schist,and quartzite. Many stocksand dikes in- bunnison Countv, Colorado, and laumontite oc- fluorite fluorescebluish-purple. Samplesfrom the trude the batholith. The primary ore-producing curs at the San Pedro mine, SantaFe County, New deposit contain up to 87 77VoBaSOa, 2.317o Pb, vein at the Alhambra mine cuts through quartz Mexico. Heulandite crystals and white fibrous 0 077o2n,0.22 ozltonAg, and a traceof goid (less diorite gneissnear a large east-trendingmonzonite mordenite occur in breccia at the Rer:/Smuggler than 0 02ozlton) Analysesof white baritecrvstals porphyry dike. The minerals discussedwere found mines, Hillsboro, New Mexico, and fine-grained yietd 80-328ppm Pb, O-rZ ppm Cu,2-4ppinZ", on the Alhambra mine dumps and in stockpiles leonhardite is abundant in hydrothermally altered lessthan l0 ppm Cr,25)44 ppm Mg, 5 ppm Mn, that were produced during mining operationsin quartz monzonite of the Chalk Cliffs, Chaffee 34-99 ppm K, 29 ppm Na, 19-23 ppm Y 1.45- fall 7979. Of oarticular interest is the occurrence CounW,Colorado. In addition to the coarselycrys- 1.59VoSr, and 0.51-1.72%Ca. The depositsat El of nickel-skuiterudite because the Black Hawk tallized zeolites that are best known to mineral Cuervo Butte are similar in emplacement,geology, mining district is the type location for this rare collectors,much more widespread-and econom- mineralogy, and chemistry to sedimentary hydro- species.Additional speciesof interestinclude sil- icallv important-are zeolite; that form bv post- thermaldeposits and areanalogous in part to Mis- ver, acanthite, niccolite, erythrite, annabergite, dep6sitional recrvstallizationof tuffaceoul iedi- sissippi Valley-type deposits. Deposits that are "pitchblende"(plus the more common sulfides), ments, particulaily from alkaline-lake environ- probably of sedimentary hydrothermal origin are and a suite of interestingcarbonate gangue min- ments These zeolites, including clinoptilolite, widespreadwithin or near the Rio Grande rift. erals. mordenite, analcime,chabazite, erionite, and phil- Examilesare found at Hansonburg,Palomas Gap, lipsite, are fypically very fine grained. They occur and SalinasPeak. Znornp. occuRRENCESrN CoLoRADo AND NEW in large tonnagesthat sometimesare mined for which make use of their mo- Mrxrco, by P. I. Modreski, U.S. Geological industrial purposes, other properties. Survey, Denver, CO 80225 (not on map) lecular sieve,ion exchange,or ZtNc ntNlnet-ocy oF THE HANovER AREA, Post-depositionalrecrvstallization is a common Well-crystallizedzeolites are known from a GnaNr Couxrv, Nrw Msxrco, by R. W. mode oi occurrenceforzeolites in Tertiaryor Qua- number of localitiesin Coloradoand New Mexico, ternarv sedimentarvbasins in the western states. Graeme, IV and D. L. Graeme,'6ox 440, mainly in amygdulesin basalticto andesiticlavas, Hanover, NM 88041 (2) One prominent example is the Green River For- but also from several other types of geologic en- mation (Eocene)of northwest Colorado and ad- Historicallv Grant Countv has been the most vironments Perhapsthe best known occurtence, jacent Wyoming and Utah, in which tuffs and oil important pioducer of zinc in New Mexico, and, first described irr 1882,is the potassicbasalt shale contain abundant analcime, plus local cli- within the county, the Hanover area of the Santa ("shoshonite")of North and South TableMoun- 'J.939, noptilolite, mordenite, natrolite, and harmotome. Rosamining district has been the most significant (Waldschmidt, Colo- tains, Golden, Colorado Zeblite deposits in tuffs also include those near producer. Mining operations in Hanover v. 62 pp.). began rado Schoolof Mines Quarterly, 39, Buckhorn,-GrantCounty, New Mexico, and near near the end of the last century and were are found sus- Analcime. thomsonite. and chabazite Winston, Sierra County, New Mexico. pended in the earlv 7970's More than 500,000tons here in abundance,as well as lesseramounts of *ere bf zinc recoveredfrom the 8.000.000tons of natrolite, mesolite, stilbite, scolecite,levyne, cow- MrruEnalocv oF rHE WINp MouurAIN LAC- ore that were mined during that period. Although lesite, gonnardite, garronite, and offretite and the coLITH/ Orrno CouNtv, NEw Mrxco, by the primary mineralogy of the areais quite simple, associatednon-zeolite mineral, apophyllite. Nearby, Eastern Washington Univer- an interestingassemblaSe of secondaryminerals, in Lakewood,Colorado, an unusual occurrenceof R. C. Boggs, most notably smithsonite, has been found This heulandite and stilbite crystals within plant fossils sity, Cheney, WA 99004 (4) surprisingly common carbonate occurs in several was found in 1982during housing excavationsin The Wind Mountain laccolith (Eocene)croPs out colors. The vivid yellow specimensare among the the Denver Formation (Late Cretaceousto Paleo- over approxirnately2 km'?insouthem Otero County, finest of their kind in the Western Hemisphere. cene).Here, volcanic-ash-bearingsandstone con-

NeusMexico Geology May 1.98s New Mexico. It is one of several small intrusions east acrossthe interstate, and following a dirt road identified antimonate. The unidentified mineral that were emplacedas discordant sheets, sills,and north that runs parallel to l-25. This-road even- has an x-ray diffraction pattern identical to ordo- laccolithsinto Permian and Cretaceous sediments tually turns eastind ends on the west side of the nezite (ZnSbrOJ,but it containsno zinc and has of the CornudasMountains area.It consistsof an Caballo Mountains. The white zig-zag on the copperas a major constituent.The mineral is sus- analcimenepheline syenite.Miarolitic cavitiesin mountain side that can be seen from the highway pectedto be the copperanalog of ordonezite.Con- the laccolithcontain a suiteof uncommon minerals marks the location of the mine. The claimi wer-e ichalcite was found in small amounts. Assavs that is similar to the suite found at Mont St.-Hi- originally locatedin 1925by J. P Pinkerton of Hatch showed silver only as high as 0.75 ozlton (2i.7 laire, Canada. Most notable qeorqe- Quebec, is and are currently under leaseto Barite of America ppm) and no gold. The presenceof relatively large chaoite,NaKZrSirO" '3HrO, a new mineral"relaled at Deming, New Mexico; the claims are currently amounts of antimony suggeststhat this depoiit to gaidonnayite, Na.ZrSi3O".3H.O. Georgechaoite inactive.The principal mineralsare barite and containedstibnite and perhapstetrahedrite ai pri- occurs as white, twinned, orthorhombid crvstals fluorite. These-occuias replacementsand open- mary minerals. The resulting oxidized products up to I mm in size. It is associated with microiline, spacefilling in the FusselmanDolomite. The local make the mineralogy of this deposit unique acmite, in New nepheline, analcime, catapleiite, mona- structure is a horst in the core of a northwest- Mexico. zite, and a Mn-rich chlorite (CanadianMineralo- trending antiform that plunges to the southeast. gist, v. 23, pt. 1). Other minerals found not directlv Mineral specimensof interestire: quartzwith bright Powr or Rocrs MESA:NEw FTNDTNGS,by Paul associatedwith georgechaoiteinclude chabazite, to dark red, yellow, orange, brown, and black F. Hlava, Sandia National Laboratoiv. Al- eudialyte,calcite, thdmsonite, and natrolite. It is phantoms;amethysU barite crystalsvarying up to buquerque, NM 87116, R. S. DeMari, Al- likely that many other minerals will be found bv 10 cm in size; and yellow to yellow-green fluorite collectors at Wind Mountain, as well as at somi crystals. buquerque, NM, and P. J. Modreski, U.S. of the other intrusions in the Cornudas Mountains Geological Survey, Denver, CO 80225 (8) area.The miaroliticcavities range in sizefrom ap- Georocy AND MINERALocy oF THE BEAR The minerals of Point of Rocks mesa in eastern proximatelyI to 3 cm in diameter.The crvstalsin MouNratNs MINTNG DISTRrcr, Soconno Colfax County, New Mexico, were first discussed the cavitiesare usually small, seldomexceeding 5 at the 3rd annual New Mexico Mineral Svmposium CouNry, New Mpxrco, by R. M. North, mm (for mineralssuch as microcline,nepheliie, in Socorroin 1982.Updates were presentedbv New Mexico Bureau of Miiles and Mineral and acmite) and commonly are onlv 1-2^mm for DeMark at the 4th annual symposium in 1983ani Resources, Socorro, (Z) the rarer minerals. The formation sebuenceof the NM 87801 by us at the joint mineralsymposium in Tucson, mineralsin the cavitiesis as follows (earliestto The BearMountains mining district is located in Arizona, in February 1984.Work continues on the latest):microcline, nepheline, analcime, acmite. the CibolaNational Forest, T. 4 N., R. 4 W., about many unknown minerals in the area. The follow- chlorite,catapleiite, monazite, and georgechaoite. 15 miies north of Magdalena.The prospectsare ing list summarizesthose mineralswe have iden- A brief descriptionof someof the slecie-sfollows. Iocatednear the head-of Cedar Springs'Canyon. tified currently at Point of Rocks. (Tentative Analcimehas formed in part frorn the alteration The mineralization of the district ii found along a identifications are starred.) Sulfides: galena, of nephelineand iq commonly found as coatings fault that cuts La Jara Peak basalticandesite aird sphalerite,pyrrhotite, and unnamedK, Fe-sulfide; of euhedralcrystals replacing nepheline crvstaii. Hells Mesa Tuff. A11prospects and shows of min- Oxides: magnetiteand *birnessite;Halides: fluo- Catapleiiteis found as-smalll<1'mm),euhedral, eralizationare located in -andesite.placeswhere the fault rite and ;Carbonates, sulfates, etc.: bar- orangeto white, hexagonal,tabular crystals. They cuts La Jara Peakbasaltic The mineral- ite, *brenkite, carbonate-apatite (carbonate- commonlyform rosette-likegroups and-areperchei ized_portionsof the fault strike roughly north- fluorapatite),pyrochlore, and *thor6astnaesite; on microclineor acmite.Ciorgbchaoite oicrrrs a, south and dip steeply to the east. Hemaiite alter- Common silicates: acmite, albite, analcime, *microcline, small (

MrNnnels oF THE Paltr Pen< BARTTEDEposIr, HercH, New Mexrco, by Travis Cato, Jr., uscs 1203 Gibson Circle, Socorro, NM g7g01 (6) ftvrrnvEorars ropocRApHrcMAps (scale 1:100,000) The Palm Park mine is locatedapproximatelv 6 contour mi northeastof Hatch, New Mexiio, yt lat. long. (m) on sections Deming (BLM) 70,71, 14, 15,T. 18 S., R. 3 W. (Uphamquad- 1978-82 32. 707' 20 Ganado (AZ-NM) 1980-84 rangle).The mine can be reachedby takins the 35.30' 109' 50 Las Cruces(NM-TX; BLM) 7976-82 Hatch exit south from I-25, immediitely tuining 32" 102" 20

ta May 1985 Nm Mexico Ceolog" west of Lindrith; Rio Arriba County, NM; sec. R. 3 W., NMPM; 36"19'25'N.,707"07'25'W. 79, T. 24 N., R. 2 W., NMPM; 36'17'28' N., PastureCanyon-canyon, 4.3 km (2.7 mi) long, Geographicnames 107'04'55'W.;not: Canadalaqtez. heads at 36'27'04' N., 106'59'12"W., trends Laguna-reservoir,0.16 km (0.1mi) long, southeastto Cafloncitode las Lleguas9.7 km (6 U.S.Board on Geographic Names lacqrez, in CanadaJacquez 5.1 km (3.2 mi) east of Lin- mi) northwest of Llaves;Rio Arriba County, NM; Abeyta Canyon----canyon,9.7 km (6 mi) long, heads drith, Rio Arriba County, NM; sec. 18, T. 24 N., sec.4, T. 25 N., R. 1W., NMPM; 36"25'20"N., in New Mexico on the northwest slope of Reed R. 1 W., NMPM; 36"18'18'N.,706'58'30" W.; not: I06"57',17',W. Escalpmentat 36"57'42" N., 106'48'45'W., hends Laguna Jaquez. Pickett Spring Canyon----

New Mexico Geology May 1985 Bob Eveleth and Bob North testified on a min- NewMexico Bureau of Mines eral fraud casefor the IRS in Houston. Frank Kott- lowski chaired the Mine Safetv Advisorv Board andMineral Resources meetingin Januarythat propos6dnew legislation. Carol Hjellming, Frank Campbell, and Bill Stone staflnotes servedas sciencefair judges at SanMiguel School. Frank Campbell, Gretchen Rovbal, and Frank Cherie Pelletier replaced Linda Wells-McCowan is entitled "Extensional history of the Rio Grande Kottlowski ionferred with the Denver USGScoal as a drafter;Guadalupe Williams ioined us as Sec- rift, New Mexico." group about drafting a summary report using retary for the Information, Resourceand Service John Hawley attended the New Mexico Water NCRDS for coal resourcecalculations. Ron Broad- Center; Marie Chavez replaced Vicki Pollmann as ResourceResearch Institute board meeting. Bob head gave a talk on Abo red beds in east-central Receptionist/Secretary; Danny Bobrow and Mark North and Bob Eveleth were invited to set uD a New Mexico to the Permian Basin section of SEPM Hemingway joined the EspafrolaSubsidence Prol- mineral exhibit at the Tucson Gem and Mineral in Midland. Sam Thompson conferred with geol- ect group; Dave Menzie moved to California. Rich- Show, and they researched mine reports in the ogists about petroleum exploration at the Pemex ard Chavez yrs had served 28 in February, Lois Phelps Dodge offices. At the 6th Ihtemational dishict office in Chihuahua City. Devlin 23 yrs in January, Mickey Wooldridge 14 Conferenceon BasementTectonics (in SantaFe in Plans for the first round of core drilling for the yrs in and January, Ruben Crespi! 10 yrs in Feb- September) Chuck Chapin will co-chair a sym- Strippable Coal Quality Project were made in Jan- ruary. +\, posium called "Basement controls in the devel- uary at a meeting in SantaFe, which was attended Hawley John field-checked earth cracks, Which opment of intracontinental rifts," and by Gretchen Roybal, Frank Campbell, Ed Beau- were caused Jamie by ground-water withdrawal, near Robertson will co-lead a field trip to see Precam- mont, Art Cohen, BruceStockton, Dal Symes,Larry Deming. Ron Broadhead presented a talk to the brian rocks of the northern Rio-Granderift. Bill Icerman, Frank Kottlowski, and repiesentative! Interstite Oil Compact Cbmmission meeting in Stone gave a talk called "Recharge through cal- from five coal companies (including Dave Tabet); Fe Santa entitled "Petroleum exploration targets crete" at the International Association of Hvdro- drilling, which is funded by NMERDI with con- in New Meico"; Lynn Brandvold served on the geologistsmeeting in Tucson. tributions from industry, should start this spring. IOCC Environmental Committee. The cooDerative ' Hawley (speaker) and Dave Love were in- GeorgeAustin was general for John projectwith USGSfor compilationof point-source chairman the New vited to attend the GSA Penrose Conference at Mexico Geological coal data in New Mexico for 1984-85 was ap- Societyspring meeting inApril. Lake Havasu, Arizona; the conference is entitled Bob Eveleth,Bob North, GeorgeAustin, and Frank proved; GretchenRoybal will continue as prinii- "Geomorphic and stratigraphic indicators of cli- Kottlowski attended pal investigator.Sam Thompson gavea talk at Texas the legislativereception given matic changein arid and semiarid environments." by the New Mexico Mining Association. Techentitled "Petroleum geology of southwestem Jeanette Gretchen Roybal gave a talk at the NMIMT geo- Chavez,Marie Chavez,Lois Devlin, Lvnne McNeil, New Mexico." scienceseminar entitled "Faciesrelationships in a Norma Meeks,and Vaizaattended "The sec- The papers published in the proceedings vol- Judy patch reef of the upper Mural Limestone in south- retary as a manager" seminar. Ginger Mclemore ume for the Ogallala Aquifer Symposiurn II in- easternArizona." Sam Thompson was notified bv 'clude went to the Denver USGS McKelvey forum on John Hawley's "Ogallala Formation in east- Phelps Petroleum that thev will drill a 22.500-ftoil mineral and energy resources. em New Mexico" and Bill Stone's "Preliminary Bob Eveleth talked test in southern Dofla Ani County. Zidek and to the SocorroRotary Club about the Socorromin- Jiri estimatesof Ogallalaaquifer rechargeusing chlo- two co-authors submitted a paper to AAPG enti- ing district. Don Wolberg addressed the Roswell ride in the unsaturated zone of Currv Countv." tled "Thermal alteration of microscopic fish re- Gem and Minerals Club concerning Mike Harris visited the Border Steel operations, paleontol{y mains." Frank Campbell presenteda poster session inventories. the Ortiz gold mine, and, with Jim Barker, the San at the Symposium on Coal Quality in Reston, Vir- Juan power plant. Keith O'Brien and Bill Stone published "Role of ginia, entitled "Occurrence of sulfates discrimi- New lVlexico Geological Society's Taos region geological and geophysical data in modeling a nates oxidized from unoxidized coals in western guidebookincluded Virginia Mclemore and Bob southwesternalluvial basin" in the November-De- New Mexico." North's article "Occurrences of precious metals cemberissue of GroundWater. Diane Murray com- Bob Osburn, Chuck Chapin, and Sam Bowring and uranium alongthe Rio Granderift in northern piled a bibliographyof the TularosaBasin aiea for helped lead a volcanic-rockfield trip for Washing- New Mexico," and Gerry Carlson and Marshall 'Analysis the AML Information, Resource,and ServiceCen- ton University (St. Louis). Peter Hanagan of Reiter's paper of terrestrial heat-flow ter. Don Wolberg, Joe Hartman, and Danny Bob- NMO&GA reported that direct receipts from oil profiles across the Rio Grande rift and southern row did a paleontologic inventory of the San Juan and gas in 1984were $999.5million; $372.9million Rocky Mountains in northern New Mexico." Mar- mine lease. The excellent thesis bv Laura Kedzie. camefrom taxesand $626.9million from bonuses, shall Reiter,Roberta Eggleston, Brenda Broadwell, which was availablein December,i! entitled "High- royalties, and interest on state permanent funds. and Jeffrey Minier sent a manuscript to AGU en- precision sAr/"Ar dating of major ash-flow t-uff Dck Chamberlin and Orin Anderson field-checked titled "Terrestrialheat-flow estimates for deeppe- sheetsnear Socorro."Mike Harris and cooperators the East Potrillo Mountains with Bill Seagerand troleum tests along the Rio Grande rift." Jim Albrich, begana study of backfillmaterials for the NMEMD Greg Mack from NMSU; their geologic map and Chuck Chapin, and Bill Laughlin's abstractin AGU AML Bureau. report is being prepared for publication.

lon Prc1I Oqaildroo US POSTAGE PAID SOCORRO,NEWMTXICO PERMIINO9

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