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FIGURES 11–12 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 11–12. Abdomen of Anacroneuria planicollis. 11. Abdomen, ventral view, male, 12. Abdomen, ventral view, female. (st: sternite, scale: 1.0 mm).

FIGURES 25–27 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 25–27. Anacroneuria quetzali (adult female). 25. Body, dorsal view, 26. Head, dorsal view, 27. Subgenital plate, eighth sternite, ventral view (Scale: 1.0 mm).

FIGURES 16–19 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 16–19. Prothoracic leg of Anacroneuria quetzali (male). 16. Prothoracic leg, dorsal view, 17. Prothoracic leg, ventral view, 18. Femur, dorsal view, 19. Coxa, ventral view. (cx: coxa, tr: trochanter, fm: femur, scale: 1.0 mm).

FIGURES 13–15 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 13–15. Nymph of Anacroneuria quetzali (male). 13. Body, dorsal view, 14. Head, dorsal view, 15. Antenna, dorsal view. (hd: head, th: thorax, ad: abdomen, pr: pronotum, lbr: labrum, ant: antenna, e: eye, scale: 1.0 mm).

FIGURES 5–8 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 5–8. Prothoracic Anacroneuria planicollis (male). 5. Prothoracic leg, dorsal view, 6. Foreleg, ventral view, 7. Femur, dorsal view, 8. Coxa, ventral view. (cx: coxa, tr: trochanter, fm: femur, scale: 1.0 mm).

FIGURES 9–10 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 9–10. Anacroneuria planicollis thorax (male). 9. Pronotum, mesonotum and metanotum, dorsal view, 10. Gills, side view. (hd: head, th: thorax, pr: pronotum, ms: mesonotum, mt: metanotum, sc: supracoxal gill, tg: thorax gill, ad: abdomen, scale: 1.0 mm).

FIGURES 2–4 in The Plecoptera of Panama. IV. Description of the last nymphal instar for two species of Anacroneuria Klapálek (Plecoptera: Perlidae) from the Caldera River, Chiriquí, Panamá

FIGURES 2–4. Nymph of Anacroneuria planicollis (male). 2. Body, dorsal view, 3. Head, dorsal view, 4. Antenna, dorsal view. (hd: head, th: thorax, ad: abdomen, pr: pronotum, lbr: labrum, ant: antenna, e: eye, scale: 1.0 mm).

opencc-by-4.0May 2020View details →

3D spatial distribution of the seismic Gutenberg-Richter parameters (a and b values) in Long Valley Caldera

3D distribution of the a and b parameters of the Gutenberg-Richter (GR) law. The analysis is presented in Gola G., Barone A., Castaldo R., Chiodini G., D'Auria L., Garcia-Hernandez R., Pepe S., Solaro G. & Tizzani P. "A novel multidisciplinary approach for the thermo-rheological study of volcanic areas: The case study of Long Valley Caldera", which has been submitted for possible publication in Journal of Geophysical Research - Solid Earth. For this purpose, we used a dataset consisting of more than 220,000 earthquakes from the NCEDC catalogue (NCEDC, 2014), spanning the interval 1978-2017 and located in the surroundings of Long Valley Caldera. We mapped the a and b values for a volume of 50×50×30 km3, over a grid of points having a regular spacing of 0.5 km. Coordinates: North America NAD27 UTM Zone 11N Easting: 310000 - 350000 m.; Northing: 4150000 - 4185000 m

opencc-by-4.0May 2020View details →

Geological model of Long Valley Caldera

Borehole lithostratigraphic data (Table S1) and boundary surfaces (surface_01-05) of Long Valley Caldera 3D geological model. This geological model is used in Gola G., Barone A., Castaldo R., Chiodini G., D'Auria L., Garcia-Hernandez R., Pepe S., Solaro G. & Tizzani P. "A novel multidisciplinary approach for the thermo-rheological study of volcanic areas: The case study of Long Valley Caldera", which has been submitted for possible publication in Journal of Geophysical Research - Solid Earth. Coordinates: North America NAD27 UTM Zone 11N Easting: 311000 - 360000 m.; Northing: 4155000 - 4187000 m; XY resolution: 500 m.

opencc-by-4.0May 2020View details →

Thermo-Rheological model of Long Valley Caldera

3D Thermo-Rheological models of Long Valley Caldera presented in Gola G., Barone A., Castaldo R., Chiodini G., D'Auria L., Garcia-Hernandez R., Pepe S., Solaro G. & Tizzani P. "A novel multidisciplinary approach for the thermo-rheological study of volcanic areas: The case study of Long Valley Caldera", which has been submitted for possible publication in Journal of Geophysical Research - Solid Earth. We evaluated the temperature distribution and the brittle-ductile values in a volume of 32×50×30 km3, along East, North and depth directions, respectively. The optimized solution of the conductive-convective model is evaluated with a reservoir permeability of 5.0·10−14 m2, a fault-zone permeability of 5.0·10−14 m2 and a temperature of the magmatic intrusion beneath the caldera of 800°C. The simulated fluid velocity magnitude (mm/year) along x , y and z directions is given positive eastward, northward and upward, respectively. The purely-conductive temperature distribution used as initial condition of the conductive-convective simulation is also given. Finally, we computed the 3D Brittle-Ductile (BD) stratification by considering the optimized conductive-convective thermal model and using a pore fluid factor, a strain rate and a β value equal to 0.36, 1.2, 10–9 s–1, respectively. Further details on the selected petrophysical parameters can be found in the Tables 2 and 3 of the manuscript. The values of the Thermal and Velocity models are gridded with a regular spacing of 0.25 km. The values of the BD model are gridded with a regular spacing of 0.5 km. Coordinates: North America NAD27 UTM Zone 11N Easting: 311000 - 360000 m.; Northing: 4155000 - 4187000 m.

opencc-by-4.0Oct 2020View details →

Caldera collapse vs inherited structures: a database of laboratory experiments

This dataset presents the results of four experimental series of analogue models performed to investigate the role of inherited structures during caldera collapse. Our experimental series tested the role of one/two inherited discontinuities variously located with respect to an analogue magma chamber. Models have been analysed quantitatively by means of (i) photogrammetric Digital Elevation Model reconstruction and (ii) Digital Particle Image Velocimetry (DPIV) techniques. In this dataset, we show the row data supporting modelling results.

FIGURES 30–36 in A new record of Chironomus (Chironomus) acidophilus Keyl (Diptera, Chironomidae) from the Uzon volcanic caldera (Kronotsky Reserve, Kamchatka Peninsula, Russia), its karyotype, ecology and biology

FIGURES 30–36. Larva of C. acidophilus Keyl. 30—frontal apotome; 31—antenna; 32—seta of labrum S I; 33—pecten epipharyngis; 34—premandible; 35—mandible; 36—mentum and ventromental plates.

FIGURES 2–9 in A new record of Chironomus (Chironomus) acidophilus Keyl (Diptera, Chironomidae) from the Uzon volcanic caldera (Kronotsky Reserve, Kamchatka Peninsula, Russia), its karyotype, ecology and biology

FIGURES 2–9. Imago male of C. acidophilus Keyl. 2—variability of frontal tubercles; 3—hypopygium, dorsal view; 3— tergite IX, lateral view; 5–9—variability of superior volsella. Scale bar 50 µm.

FIGURES 20–29 in A new record of Chironomus (Chironomus) acidophilus Keyl (Diptera, Chironomidae) from the Uzon volcanic caldera (Kronotsky Reserve, Kamchatka Peninsula, Russia), its karyotype, ecology and biology

FIGURES 20–29. Larva of C. acidophilus Keyl. 20—antenna; 21—labro-epipharyngeal region; 22—mandible; 23–26—apex of mandible; 27—maxilla; 28—anterior margin of base maxilla; 29—mentum and ventromental plate. Scale bar 50 µm.

FIGURES 10–19 in A new record of Chironomus (Chironomus) acidophilus Keyl (Diptera, Chironomidae) from the Uzon volcanic caldera (Kronotsky Reserve, Kamchatka Peninsula, Russia), its karyotype, ecology and biology

FIGURES 10–19. Pupa of C. acidophilus Keyl. 10–11—frontal tubules, dorsal view; 12—median hooks on the posterior margin of tergite II, lateral view; 13—tergites II–VI; 14—tergites VII–IX; 15–19—variability of anal combs. Scale bar 50 µm.

FIGURE 37 in A new record of Chironomus (Chironomus) acidophilus Keyl (Diptera, Chironomidae) from the Uzon volcanic caldera (Kronotsky Reserve, Kamchatka Peninsula, Russia), its karyotype, ecology and biology

FIGURE 37. Polytene chromosomes of C. acidophilus Keyl, 1960. Designations: A, B, C, D, E, F, G—chromosome arms, arabic numerals and letters—chromosome sections, N—nucleolus, BR—Balbiani Ring, arrows indicate the centromeres.

FIGURE 4 in A new subfamily of ulmarid scyphomedusae, the Santjordiinae, with a description of Santjordia pagesi gen. et sp. nov. (Cnidaria: Scyphozoa: Discomedusae: Semaeostomeae: Ulmaridae) from the Sumisu Caldera, Ogasawara Islands, Japan

FIGURE 4. Close-up photograph of subumbrella of preserved specimen of Santjordia pagesi gen. et sp. nov. holotype showing tentacle disposition. Sketch of subumbrella photograph, labelled with morphological characters. Scale bar = 1 mm.

FIGURE 3 in A new subfamily of ulmarid scyphomedusae, the Santjordiinae, with a description of Santjordia pagesi gen. et sp. nov. (Cnidaria: Scyphozoa: Discomedusae: Semaeostomeae: Ulmaridae) from the Sumisu Caldera, Ogasawara Islands, Japan

FIGURE 3. Santjordia pagesi gen. et sp. nov. Holotype. a: photograph of lateral view of living specimen in the gate sampler; b: photograph of aboral view of living specimen in the gate sampler; c: sketch of lateral view of living specimen; d: sketch of aboral view of living specimen; e: sketch of portion of oral view of preserved specimen; f: close-up of adradial rhopalium of preserved specimen, showing exumbrella with cleft, statocyst and rhopaliar canal; g: close-up of oral arm of living specimen in the onboard aquarium, showing marginal papillae. Scale bar = 2 cm except f: scale bar = 1 mm.

FIGURE 6 in A new subfamily of ulmarid scyphomedusae, the Santjordiinae, with a description of Santjordia pagesi gen. et sp. nov. (Cnidaria: Scyphozoa: Discomedusae: Semaeostomeae: Ulmaridae) from the Sumisu Caldera, Ogasawara Islands, Japan

FIGURE 6. Phylogenetic reconstruction based on the 16S-rDNA region for Scyphozoa. Values at nodes indicate ML bootstrap support>50%, and solid circles represent Bayesian probabilities>0.95.

FIGURE 5 in A new subfamily of ulmarid scyphomedusae, the Santjordiinae, with a description of Santjordia pagesi gen. et sp. nov. (Cnidaria: Scyphozoa: Discomedusae: Semaeostomeae: Ulmaridae) from the Sumisu Caldera, Ogasawara Islands, Japan

FIGURE 5. Photograph montage of a tentacle squash from the preserved specimen of Santjordia pagesi sp. nov. holotype showing nematocyst size and morphology. Scale bar = 10 µm.