Dating westerwald

Dating westerwald stoneware

-pfalzwesterwaldkreisbad marienberg/westerwaldkontaktanzeige partnersuche in bad marienberg/westerwald und umgebung ich suchefrauenmännerim alter von18192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899bis18192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899ort / plz aktuell 3. the 206pb/204pb of the westerwald lavas varies between 19·4 and 19·6 and is significantly higher than the 206pb/204pb of the vogelsberg group lavas, which range between 19·0 and 19·4 (fig.-dieter garbe-schönberg; petrogenesis of tertiary continental intra-plate lavas from the westerwald region, germany. in the following discussion the samples are grouped according to their geographical occurrence into westerwald and vogelsberg region lavas.(4) several lavas from the westerwald and vogelsberg region have assimilated significant amounts of continental crustal material during fractional crystallization in the lower crust. largedownload slide(a) variation of ce/pb vs ba/la for the westerwald and vogelsberg margin lavas from this study and the vogelsberg volcanic field lavas (bogaard & wörner, 2003). related topicssearchdatingpotterydating westerwald pottery - google searchsee moregerman stoneware - google searchsee morestoneware saltglazedceramics westerwald stonewaregerman stonewareearthenwareshipwreck ebaystein shipwreckceramics historichistorical ceramicsenghals jugforwardwesterwald stoneware saltglazed jugsee morefrom ebaygerman stoneware - google searchsee more19thc stonewarestoneware flagonlid featuringbeer tankardsgirls estatemid 19thcporcelain decorationantique beerlot 48forwardmid 19thc stoneware flagon w pewter lid featuring hand painted porcelain decorationsee moretankard crestjug tankardfeience jugwork of artcrestsdishescatalogpotteryforwardkrug westerwald fayence feience jug tankard crestsee moredating westerwald pottery - google searchsee morepottery jugstoneware potterywork of artcatalogforwardwalzenkrug westerwald stoneware pottery jugsee moretankards jugssteins tankardsjug circa1700westerwald jugpmed potceramics westerwald stonewarejugs drinkingglaze diyforwardantique westerwold jug c l700see morerare westerwald saltglaze stoneware jug with the crucifixion, circa 1670 | martyn edgell antiques ltd. largedownload slidek/la vs la for westerwald and vogelsberg lavas with ce/pb >20 from this study and bogaard & wörner (2003). the relatively high pb isotope ratios of the westerwald basanites indicate higher time-integrated (u + th)/pb in the mantle source beneath the rhenish massif than beneath the eastern region of the vogelsberg and hessian depression. westerwald and vogelsberg lavas show a broad negative correlation between ce/pb and sio2 content (fig.(2) the stronger fractionation of the hree in the westerwald lavas indicates formation of the most primitive magmas in the garnet peridotite stability field at high temperature. most spinel peridotites from this area are lree depleted and have much higher 143nd/144nd (>0·513) than the westerwald and vogelsberg region basanites (witt-eickschen & kramm, 1997) and thus cannot represent samples of the source of the mafic magmas.

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12), implying that the source of the youngest magmas was similar to that of the early volcanic phase of the westerwald–siebengebirge and possibly hocheifel. it should be noted that some of the lavas from this study resemble the high-ti basanites from the vogelsberg (bogaard & wörner, 2003) and that most of the westerwald lavas show different trends from the vogelsberg lavas in al2o3 and mgo. lavas from the westerwald (eifel group) with high ce/pb of about 30 have 206pb/204pb between about 19·4 and 19·6, whereas vogelsberg group lavas with high ce/pb have lower 206pb/204pb between 19·0 and 19·4 (fig. two lava groups can be defined based on the sr–nd isotope trends: (1) the eifel group contains lavas from the eifel, westerwald and siebengebirge; (2) the vogelsberg group contains vogelsberg and hessian depression lavas.) (b) (ce/yb)n vs 206pb/204pb for the vogelsberg group lavas and westerwald lavas. this paper, we present new geochemical and sr, nd, and pb isotopic data for a suite of tertiary volcanic rocks from the westerwald and vogelsberg areas. na2o and k2o concentrations increase with increasing sio2 up to ∼63 wt % sio2; several of the vogelsberg margin lavas have higher contents in both alkali elements than the westerwald lavas and the most primitive rocks from the vogelsberg volcano (fig. largedownload slide(a) neodymium vs sr isotope ratios for the westerwald, vogelsberg, eifel, siebengebirge and hessian depression lavas (wörner et al. crustal thickness for the westerwald region is from prodehl et al. largedownload slide(a) 143nd/144nd vs sio2 for lavas from the westerwald and vogelsberg compared with the field of eifel granulite xenoliths. samples were taken in the westerwald volcanic field and from small occurrences (remnants of lava flows, plugs and necks) in the region surrounding the westerwald (fig. dry mantle at 3 gpa produces magmas with about 45 wt % sio2 similar to the uncontaminated alkali basalts of the westerwald (jaques & green, 1980; kushiro, 1996).

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largedownload slide(a) map of the area of tertiary to quaternary volcanic activity between the eifel and siebengebirge (sg) in the west, the westerwald in the centre, and the vogelsberg and hessian depression in the east. large range of mgo contents in the lavas from the westerwald and vogelsberg region indicates that fractional crystallization processes have affected the magmas during ascent. for example, the westerwald region lavas may have formed by up to 35% fractionation and 1–5% assimilation of a granulite with a composition like that of sample s32 (stosch & lugmair, 1984; loock et al. the latter ages are comparable with the age dates for the vogelsberg lavas, which are significantly younger than most westerwald lavas. westerwald lavas have higher 206pb/204pb but generally lower (ce/yb)n than most vogelsberg group lavas with 206pb/204pb >19·0. the westerwald lavas have some of the highest pb isotope ratios found to date in the northern rhine graben volcanic fields; only a few eifel and siebengebirge lavas have similarly high 206pb/204pb (fig. the existence of a relatively sharp boundary in the crustal composition east of the westerwald coincides with changes in the seismic and magnetotelluric properties of the middle and lower crust (prodehl et al. largedownload slide(a) (dy/yb)n vs (ce/yb)n and (b) k/la vs (ce/yb)n for the westerwald and vogelsberg margin data compared with the vogelsberg lavas from bogaard & wörner (2003). thus, the solidus beneath the westerwald must lie deeper than beneath the vogelsberg, requiring a hotter mantle beneath the westerwald, whereas the lithosphere must have been thinned as a result of extension beneath the sedimentary basin of the vogelsberg region (fig. 9a suggests that the mantle source of the westerwald region magmas must have been enriched in the lree to give degrees of partial melting of about 2–5% melting. themen rund um die partnersuche faq online datingdas perfekte online-profilblind-date altenkirchen/westerwaldpartnersuche 40plus altenkirchen/westerwaldgay dating altenkirchen/westerwaldpartnersuche 50plus altenkirchen/westerwalddating altenkirchen/westerwaldpartnervermittlung ab 50 altenkirchen/westerwaldsenioren-partnersuche altenkirchen/westerwald. the 30–20 ma volcanism of the westerwald apparently had the same mantle source as the quaternary eifel lavas, suggesting that the magmas probably formed in a pulsing mantle plume with a maximum excess temperature of 100°c beneath the rhenish massif.

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Petrogenesis of Tertiary Continental Intra-plate Lavas from the

relatively uncontaminated lavas from the vogelsberg region generally show higher (ce/yb)n than the primitive westerwald lavas in spite of their lower 206pb/204pb (fig., 1991) and thus the most likely magma source of the westerwald region basanites is garnet lherzolite, which is stable at depths below about 70 km (robinson & wood, 1998). largedownload slidetemporal variations of the 206pb/204pb(t) composition of the westerwald, vogelsberg, eifel, hessian depression and siebengebirge lavas (cantarel & lippolt, 1977; lippolt & todt, 1978; wedepohl, 1982; mertes, 1983; turk et al. basanites from the vogelsberg region are more alkaline and have higher na2o than the primitive westerwald region lavas. morejug germangerman saltglaze steinssteins porcelainceramics westerwald stonewaremedium saltdate 18thgeneological samplerpottery porcelainforwarddate: 18th century culture: german (westerwald) (grenzau or grenzenhausen) medium: salt-glazed stonsee moredecoration 19071907 90monogram gr1714 1727manganese decorationceramics westerwald stonewaregermany saltobjects 18thceramics glassforwardphiladelphia museum of art - collections object : mug with the monogram grsee morebartmann potterypottery saltantique potterygermany saltstein germanybeer steins tankardsmugs tankardsstoneware tankardsstoneware westwerwaldforwardtankard, germany, salt glazed stoneware, early 17th centurysee morestoneware saltglazedceramics westerwald stonewaregerman stonewareearthenwareshipwreck ebaystein shipwreckceramics historichistorical ceramicsenghals jugforwardwesterwald stoneware saltglazed jugsee morefrom ebaywomen’s fashionweddingstraveltechnologytattoosquotesphotographyoutdoorsmen’s fashionkids and parentinghome decorhealth and fitnesshair and beautygardeningfood and drinkeducationdiy and craftsdesignartarchitecturepicked for yousign uplog inpinterest • the world’s catalog of ideassearchlog in with googleprivacy. assimilation of lower-crustal rocks and fractional crystallization altered the composition of lavas from the westerwald and vogelsberg region significantly. largedownload slidetemporal variations of the 206pb/204pb(t) composition of the westerwald, vogelsberg, eifel, hessian depression and siebengebirge lavas (cantarel & lippolt, 1977; lippolt & todt, 1978; wedepohl, 1982; mertes, 1983; turk et al. the westerwald lavas have lower (ce/yb)n and higher 206pb/204pb than the vogelsberg group samples with the highest 206pb/204pb (fig. consequently, the westerwald and vogelsberg region magmas are likely to have stagnated in the lower crust at comparable depths to the eifel magmas, and assimilation of crustal wall rocks during the time of stagnation and crystallization is possible. (b) enlarged map of the study area indicating the sample locations; •, westerwald region; ○, vogelsberg region. isolated volcanic plugs and remnants of lava flows occur east of the westerwald; the basaltic rocks in the area of the westerwald have been dated at 32–21 ma whereas the eastern lavas at the margin of the vogelsberg erupted between 19 and 9 ma (turk et al. basanites from the vogelsberg region are more alkaline and have higher na2o than the primitive westerwald region lavas.

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Beer Stein Article - “Westerwald Steinzeug: 1600-1914”

the ree composition of the westerwald region lavas can be modelled by about 4–7% melting of an enriched garnet peridotite (source b).) (b) (ce/yb)n vs 206pb/204pb for the vogelsberg group lavas and westerwald lavas. largedownload slide(a) total alkali–silica diagram and major element compositions of the westerwald and vogelsberg region lavas in comparison with the dataset of bogaard & wörner (2003) from the vogelsberg volcano. many primitive vogelsberg lavas have higher sio2 contents for a given mgo than the mafic rocks from the westerwald region. however, most of the vogelsberg lavas have lower (dy/yb)n for the same range of (ce/yb)n than the westerwald region lavas, indicating less garnet in their source. angemeldete singles in bad marienberg/westerwald und umgebung - jetzt anmelden und kontaktanzeige in bad marienberg/westerwald aufgeben! (b) diagram of 207pb/204pb vs 206pb/204pb, showing that westerwald, eifel and siebengebirge lavas generally have higher 206pb/204pb than vogelsberg and hessian depression lavas. altenkirchen/westerwald partnervermittlung altenkirchen/westerwald casual dating altenkirchen/westerwald freunde finden altenkirchen/westerwald seitensprung altenkirchen/westerwald. thus, the main activity in the westerwald and siebengebirge occurred between approximately 20 and 30 ma (lippolt, 1982) and these melts tapped a mantle source with relatively high 206pb/204pb isotope composition (fig. largedownload slidek/la vs la for westerwald and vogelsberg lavas with ce/pb >20 from this study and bogaard & wörner (2003). k–ar age dating of the sw westerwald volcanic rocks has suggested three phases of volcanism with the main activity at about 25 ± 3 ma and two later phases at 5·6 ma and 0·4–0·8 ma (lippolt & todt, 1978). jahrealle single-frauen in altenkirchen/westerwaldfrauen von 25 bis 30 altenkirchen/westerwaldfrauen von 31 bis 35 altenkirchen/westerwaldfrauen von 36 bis 40 altenkirchen/westerwaldfrauen von 41 bis 45 altenkirchen/westerwaldfrauen von 46 bis 50 altenkirchen/westerwaldfrauen von 51 bis 55 altenkirchen/westerwaldfrauen von 56 bis 60 altenkirchen/westerwaldfrauen von 61 bis 65 altenkirchen/westerwaldfrauen von 66 bis 70 altenkirchen/westerwald© photographee.

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A Westerwald Chamber Pot | The Peabody

many westerwald region lavas lie on a trend with higher al2o3 contents for a given sio2 content than most of the vogelsberg lavas (fig. erleben erotische abenteuer in bad marienberg/westerwaldseitensprung in bad marienberg/westerwald. for example, magmas with 40–42 wt % sio2 similar to the westerwald basanites can form at 3 gpa and 1475°c (hirose, 1997) and at 2 gpa and 1360°c (mysen & kushiro, 1977) with a solidus lowered by low contents of volatiles in the mantle (fig. the exception of one trachyte sample all the lavas from the westerwald and vogelsberg lie on a negative trend of ce/pb vs ba/la (fig. however, both the westerwald and vogelsberg lavas display large ranges of k/la between about 100 and 350, and several of the vogelsberg region lavas with the highest (ce/yb)n and la concentrations have the lowest k/la (figs 9b and 10). largedownload slide(a) variation of ce/pb vs ba/la for the westerwald and vogelsberg margin lavas from this study and the vogelsberg volcanic field lavas (bogaard & wörner, 2003). 17 18ccstoneware cobaltgerman stonewarecobalt decpewter lotpottery and ceramicsclay ceramicsceramics westerwald stoneware19thc germanforward19thc german stoneware cobalt dec flagon w orig pewter lid - 13 1/2" tallsee moresaargueminessee moresteins pitcherssteins carafe sbeer steinsmettlach steinsmettlach ceremicsein prosit germanprosit german steindecorating foodfall decoratingforwardimage detail for -fayence / faience – v & b mettlach steins - the factory . it should be noted that some of the lavas from this study resemble the high-ti basanites from the vogelsberg (bogaard & wörner, 2003) and that most of the westerwald lavas show different trends from the vogelsberg lavas in al2o3 and mgo. however, several of the westerwald samples from the vogelsberg margin plot within the mid-ocean ridge basalt (morb) array but have lower 143nd/144nd than morb (figs 5a and 6). largedownload slide(a) neodymium vs sr isotope ratios for the westerwald, vogelsberg, eifel, siebengebirge and hessian depression lavas (wörner et al. 2c) is similar to that of lavas from the vogelsberg volcanic field (bogaard & wörner, 2003); we also find high-tio2 basanites in the vogelsberg margin of the westerwald., 1986), and are similar to the basanites and alkali basalts from the westerwald and vogelsberg region, which have ce/pb between 20 and 40 (fig.

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Meet member quinn rosefsky and his westerwald chamber pot

(ce/yb)n ratios of the westerwald basanites and alkali basalts with <50 wt % sio2 range between 10 and 20 whereas those in the trachytes (sio2 ∼63 wt %) are 18–20 (fig. petrological data suggest a maximum excess temperature of 100°c in the mantle beneath the westerwald in the tertiary, which we relate to the activity of a mantle plume, whereas the eastern lavas formed from cooler mantle, probably the thermal boundary layer at the base of the lithosphere, and erupted in a sedimentary basin. sites zur partnersuchesingle-chat bad marienberg/westerwald gay dating bad marienberg/westerwald reisepartner. volcanic rocks from the westerwald region range from basanites and alkali basalts to trachytes, whereas lavas from the margin of the vogelsberg volcanic field consist of more alkaline basanites and alkali basalts. because the tertiary westerwald lavas have the same mantle source (with high 206pb/204pb) as the quaternary eifel lavas (figs 5, 6, and 12) they may have formed either from the same mantle plume or from a small mantle plume similar to that at present underneath the eifel. of the westerwald and vogelsberg margin lavas from this study have relatively high 143nd/144nd (>0·5128) compared with many volcanic rocks from the eifel, hessian depression and vogelsberg. the relatively high k/la ratios of the primitive westerwald and vogelsberg basalts allow depletion of the source by only small melt fractions because otherwise the mantle would be too depleted and would require extremely high volumes of a re-enriching melt or the recycled component to generate a significant melt fraction. largedownload slide(a) diagram of ce/pb vs 206pb/204pb showing positive correlations between lavas from the vogelsberg and hessian depression (the vogelsberg group) and also for the westerwald lavas (eifel group). most of the westerwald magmas may have formed in the garnet peridotite stability field (55% olivine–20% orthopyroxene–21% clinopyroxene–4% garnet) whereas vogelsberg magmas may have formed shallower at the garnet–spinel peridotite transition (55% olivine–20% orthopyroxene–21% clinopyroxene–1·5% garnet–2·5% spinel). most of the westerwald lavas, even some with low ce/pb, have high nb/u within the range suggested for the mantle (fig. largedownload slide(a) total alkali–silica diagram and major element compositions of the westerwald and vogelsberg region lavas in comparison with the dataset of bogaard & wörner (2003) from the vogelsberg volcano. westerwald volcanic field covers about 800 km2 and consists of (1) a larger part (∼500 km2) in the ne that comprises several mafic lava flows and (2) a smaller part in the sw (∼280 km2) dominated by trachytic to phonolitic lavas, intrusions and volcaniclastic rocks (schreiber et al.

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3:sr, nd, and pb isotope compositions of representative westerwald and vogelsberg region samples sample age (ma) 87sr/86sr(0) 87sr/86sr(t) 143nd/144nd(0) 143nd/144nd(t) 206pb/204pb(0) 207pb/204pb(t) 208pb/204pb(0) 206pb/204pb(t) 207pb/204pb(0) 208pb/204pb(t) 010-11 basanite (24) 0·703492 (6) 0·70344 0·512854 (12) 0·51283 19·570 15·612 39·291 19·45 15·61 39·16 p02-1 hawaiite 24 0·703470 (7) 0·70342 0·512880 (6) 0·51286 19·601 15·606 39·276 19·49 15·60 39·15 p06-2 alk. consequently, we define an ‘eifel’ group consisting of lavas from the eifel, siebengebirge and westerwald region in contrast to the lavas with lower 87sr/86sr and 206pb/204pb from the vogelsberg region and hessian depression, which form the ‘vogelsberg’ group (figs 5 and 6). lavas from the westerwald region span a range of compositions from basanites and picrobasalts to trachytes, whereas the samples from the vogelsberg margin consist of basanites and alkali basalts (fig. the volcanics from the vogelsberg (bogaard & wörner, 2003) plot on the same trend as the westerwald lavas but have even higher ce/pb than the westerwald samples (fig. the samples from the westerwald region fall into the eifel group whereas the samples from the vogelsberg margin are similar to the vogelsberg volcanic rocks (fig. the crustal thickness beneath the westerwald is about 30 km and several low-velocity layers have been identified in both the crust and the mantle beneath the region (prodehl et al. together with these concentrations we use average isotope compositions of the uncontaminated eifel and westerwald group lavas, respectively (table 4). (b) diagram of 207pb/204pb vs 206pb/204pb, showing that westerwald, eifel and siebengebirge lavas generally have higher 206pb/204pb than vogelsberg and hessian depression lavas. largedownload slide(a) diagram of ce/pb vs 206pb/204pb showing positive correlations between lavas from the vogelsberg and hessian depression (the vogelsberg group) and also for the westerwald lavas (eifel group).(1) the composition of the westerwald lavas ranges from basanitic to trachytic whereas the lavas from the margin of the vogelsberg volcanic field are more alkaline basanites and alkali basalts. largedownload slidediagram of 87sr/86sr isotopes (a) and 143nd/144nd (b) vs 206pb/204pb for the westerwald, vogelsberg/hessian depression, and eifel/siebengebirge lavas. the average mantle has been inferred to have a potential temperature of 1300°c (mckenzie & bickle, 1988), implying an upper limit of the excess temperature of 100°c for any mantle plume that might have existed beneath the westerwald 20 myr ago.

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the deep formation of the magmas in the garnet peridotite stability field (figs 9 and 11) supports a plume origin of the westerwald lavas. frauen von 20 bis 25 bad marienberg/westerwaldfrauen von 25 bis 35 bad marienberg/westerwaldfrauen von 36 bis 45 bad marienberg/westerwaldfrauen von 46 bis 55 bad marienberg/westerwaldfrauen von 56 bis 65 bad marienberg/westerwaldfrauen von 66 bis 75 bad marienberg/westerwald. related topicssearchwesterwald steinzeug - google searchsee moresteins pitcherssteins carafe sbeer steinsmettlach steinmettlach ceremicssteins antiqueprosit german steinpewter steinsteins hornsforwardimage detail for -mettlach; stein, no 2015, relief, cavalier, pewter lid, 5. two lava groups can be defined based on the sr–nd isotope trends: (1) the eifel group contains lavas from the eifel, westerwald and siebengebirge; (2) the vogelsberg group contains vogelsberg and hessian depression lavas. (2001) suggested excess temperatures of 150–200°c for a 100 km wide deep mantle plume situated beneath the eifel, some 100 km to the west of the westerwald region. the high ce/pb of ∼30 in the primitive magmas of both the radiogenic westerwald and the less radiogenic vogelsberg source (fig. 11 and can give important insights into the range of pressure and temperature of generation of the westerwald magmas. 2e for the more evolved rocks with more than 45 wt % sio2: (1) a trend defined by westerwald region plus some vogelsberg lavas with low mgo contents; (2) a linear trend at higher mgo contents mostly defined by vogelsberg samples (fig.(3) the isotopic composition of the uncontaminated tertiary to quaternary lavas from the northern rhine graben region indicates that lavas from the rhenish massif (eifel, westerwald, siebengebirge = eifel group) have a different mantle source from the eastern lavas of the vogelsberg and hessian depression (= vogelsberg group). the most primitive samples (sio2 <45 wt %) from the region surrounding the vogelsberg are generally more alkaline than the lavas from within the vogelsberg volcanic field and from the westerwald. largedownload slidediagram of 87sr/86sr isotopes (a) and 143nd/144nd (b) vs 206pb/204pb for the westerwald, vogelsberg/hessian depression, and eifel/siebengebirge lavas. heavy rare earth element fractionation indicates that the primitive westerwald magmas probably represent melts of garnet peridotite.

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the lavas of the westerwald region overlie devonian and carboniferous sedimentary and volcanic rocks of the rhenish massif. the westerwald and vogelsberg region mafic magmas contain ti-augites with cores having relatively high al contents and low ti/al ratios similar to the high-pressure clinopyroxenes in the alkaline magma series from the eifel and slovakia (duda & schmincke, 1985; dobosi & fodor, 1992). of tertiary continental intra-plate lavas from the westerwald region, germany. themen rund um die partnersuche fragen zum online datingdas perfekte online-profilblind-date bad marienberg/westerwaldpartnervermittlung bad marienberg/westerwaldgay dating bad marienberg/westerwaldpartnersuche 50plus bad marienberg/westerwalddating bad marienberg/westerwaldsingle-chat bad marienberg/westerwaldreisepartner findenpartnervermittlung ab 50 bad marienberg/westerwaldsenioren-partnersuche bad marienberg/westerwaldpartnersuche 40plus bad marienberg/westerwald. largedownload slide(a) map of the area of tertiary to quaternary volcanic activity between the eifel and siebengebirge (sg) in the west, the westerwald in the centre, and the vogelsberg and hessian depression in the east. thus, both experimental constraints and our ree model suggest that the highly undersaturated magmas of the westerwald may have formed in a garnet peridotite mantle source with a potential temperature of around 1400°c (fig. largedownload slide(a) (dy/yb)n vs (ce/yb)n and (b) k/la vs (ce/yb)n for the westerwald and vogelsberg margin data compared with the vogelsberg lavas from bogaard & wörner (2003). the significant crustal contamination of the westerwald and vogelsberg basalts with more than 48 wt % sio2 implies that there are no primary sio2-rich basaltic (∼tholeiitic) magmas which would reflect shallow and high-degree partial melts of the mantle. in contrast, magma generation beneath the westerwald region in tertiary times may have been due to a mantle plume with an excess temperature of about 100°c, consistent with the velocity anomaly observed at present beneath the eifel (ritter et al. männer von 20 bis 25 bad marienberg/westerwaldmänner von 25 bis 35 bad marienberg/westerwaldmänner von 36 bis 45 bad marienberg/westerwaldmänner von 46 bis 55 bad marienberg/westerwaldmänner von 56 bis 65 bad marienberg/westerwaldmänner von 66 bis 75 bad marienberg/westerwald© photographee. most of the westerwald magmas may have formed in the garnet peridotite stability field (55% olivine–20% orthopyroxene–21% clinopyroxene–4% garnet) whereas vogelsberg magmas may have formed shallower at the garnet–spinel peridotite transition (55% olivine–20% orthopyroxene–21% clinopyroxene–1·5% garnet–2·5% spinel). residual phlogopite appears less likely than amphibole because phlogopite fractionates k/la even more efficiently than amphibole and also fractionates ba/la significantly, whereas ba/la is relatively constant in the uncontaminated westerwald and vogelsberg lavas (fig.

most of the data from the westerwald and the vogelsberg lie on a negative trend between (ce/yb)n and sio2 (fig. vogelsberg volcanic field lavas with the same 143nd/144nd have lower 87sr/86sr than westerwald, eifel and siebengebirge samples..dating westerwald pottery - Google SearchDeutschlandrheinland-pfalzkreis altenkirchen/westerwaldaltenkirchen/westerwaldkontaktanzeigesingle-frauen er sucht sie - single-frauen in altenkirchen/westerwald ich suchefrauenmännerim alter von18192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899bis18192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899ort / plz aktuell 1. 2:compositions of lavas from the westerwald (w) and vogelsberg margin (vm) sample: 001-1 (w) 010-11 (w) 010-4 (w) 011-1 (w) p 02-1 (w) p 03-1 (w) p 04-1 (w) p 06-2 (w) p 07-1 (vm) p 08-1 (vm) p 11-1 (vm) p 13-2 (vm) p 16-1 (vm) rechtswert:* 34 37,675 34 37,300 34 37,300 34 41,100 34 55,760 34 53,900 34 55,920 34 64,320 34 66,450 34 69,550 34 74,200 34 75,360 34 78,620 hochwert:* 56 22,010 56 19,700 56 19,700 56 19,100 56 11,400 56 04,650 56 04,200 56 01,720 55 99,500 56 08,380 56 08,880 56 09,100 56 14,750 age (ma):†     24  23·6 20·9 9·3 16·4 16·6 15 15·8 rock type:‡ basanite basanite basanite basanite hawaiite basanite basanite alk. the sample suite consists mainly of mafic lavas and intrusive rocks; however, samples from the southwestern part of the westerwald are mainly felsic lavas. westerwald lavas have higher 206pb/204pb but generally lower (ce/yb)n than most vogelsberg group lavas with 206pb/204pb >19·0. some of the westerwald region lavas lie at the radiogenic (high 206pb/204pb) end of the highly variable pb isotope compositions observed in the tertiary volcanic rocks from the eifel to the west of the vogelsberg (fig. (b) enlarged map of the study area indicating the sample locations; •, westerwald region; ○, vogelsberg region. crustal thickness for the westerwald region is from prodehl et al. 9a) indicates that the primitive westerwald magmas formed in the presence of residual garnet. observed variations in pb and sr isotope composition for the crustal end-members that have contaminated the two lava groups imply that there are significant differences in crustal composition between the western region of the eifel, siebengebirge and westerwald and the eastern volcanic region of the vogelsberg and hessian depression. we speculate that a distinct isotopic boundary occurs in the lower crust between the area of the eifel, siebengebirge and westerwald in the west and the eastern region of the vogelsberg and hessian depression.

Briefly describe three of the principles used in relative dating