bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structural Architecture of the Vindhyan Strata in Son Valley: Implications for Basin Tectonics
Authors: Chakraborty Chandan , Karmakar Subrata 
Published: November 2024

Abstract
Detailed field studies on the regional structure of the Vindhyan strata in Son valley reveal that the Vindhyan strata define a broad syncline with a gently plunging (westerly), mildly curved fold axis (average trend ENE-WSW) and a southerly inclined axial plane. The southern limb of the broad syncline shows several smaller folds which are conspicuously absent in the gently dipping, homoclinal, northern limb. The mesoscopic folds also conform to the regional structural pattern. Progressive deformation of horizontal strata under asymmetric compression associated with a vertical shear displacement has been simulated with the help of a computer software. The computer-generated structural pattern is remarkably similar to the pattern revealed from field studies indicating that the structural pattern of the Vindhyan strata is the consequence of asymmetric compression with the northerly directed force far exceeding the magnitude of the southerly directed force.
Absence of any northerly directed compressional movement in the Indian peninsula in post-Vindhyan period suggests that the deformation of the Vindhyan had been syn-Vindhyan, perhaps associated with the Satpura orogeny. This leads to the deduction that the origin and evolution of the Vindhyan basin was related to flexural subsidence associated with repeated thrust loading in the south.
Cloudiness in Zircons - A Chemical and Morphological Study
Authors: Gupta L. B. , Meler G. , Johannes W. 
Published: November 2024

Abstract
Electron microprobe and infrared spectroscopic studies show that the clouded areas in zircons contain additional Fe2O3, CaO, MgO, Al2O3 and water than those of the clear areas. IR spectroscopic analysis indicates that the clouded portions have both molecular H2O and OH molecule in similar proportions. Total amount of water in the clouded portions is of the order of 8% by weight. There is a direct relationship between water+secondary components and cloudiness of the zircons. The data suggest that F2O3, CaO, MgO and Al2O3 dissolved in water got incorporated into the crystal structure of zircon and replaced ZrO2 and SiO2 simultaneously.
Dasycladacean Algae from Paleocene to Oligocene Rocks of Baratang Island, Andaman, India
Authors: Badve R. M. , Kundal P. 
Published: November 2024

Abstract
The calcareous coarse-grained sandstones occurring both in the Baratang Group (Lower Paleocene to Lower Eocene) and the Port Blair Group (Middle Eocene to Oligocene) yielded a rich dasycladacean algal flora comprising four species namely: Broeckella baratangensis sp. nov., Dissocladella deserta Elliott, Neomeris plagnensis Dellofre and Trinocladus indicus sp. nov. They have Tethyan affinities and indicate shallow marine tropical water having a maximum depth of about 5-6 m below low tide level.
Elemental Distribution in Innershelf Sediments off Coondapur, West Coast of India
Authors: Pandarinath K. , Narayana A. C. 
Published: November 2024

Abstract
The innershelf sediments of Coondapur were studied for Cu, Pb, Zn, Ni, Co, V, Mn, Cr, Fe, Ti, Al, Ca, organic matter composition and magnetic susceptibility to understand their distribution, enrichment and element burial phases in the sediments. Along most of the transects, the sediments of 30m depth have shown more concentrations of Cu, Zn, Ni, Co, Mn, Fe, Ca and organic matter than those of 20 and 10m depth. The comparisons with sediments of uncontaminated natural formations, innershelf sediments of other unpolluted regions and world averages in different geological formations shows that the study area is unpolluted and the data can be used as a base line for future pollution studies. The sequential leaching of elements shows that they are mainly (~60-80% of the total content) associated in detrital clay and heavy minerals followed by (~20-30% of the total) in sulphide phase. The concentrations of all the element (except Mn) in other phases (exchangeable ions, loosely sorbed ions, carbonate constituents and interstitial water) were negligible. Nearly 40% of the total Mn is present in the leachates of EDT A and acetic acid soluble fractions. Mn concentration is almost negligible (6-11 % of the total) in acetic acid-hydroxylamine hydrochloride leachate (oxide phase) and its concentration is considerable (10-30% of the total) in H2O2-ammonium acetate leachate (sulphide phase). These observations suggest that reducing conditions may be prevailing in the innershelf off Coondapur.
Gold Mineralization in the Mahakoshal Greenstone Belt, Central India: A Preliminary Study
Authors: Devarajan M. K. , Hanuma Prasad M. , Keshava Prasad A. V. , Soni M. K. 
Published: November 2024

Abstract
Gold Mineralization in the eastern part of the Late Archaean Mahakoshal Belt is observed in sulphidic chert associated with banded ferruginous chert (BFC) and in quartz-carbonate-sulphide veins and quartz-carbonate veins emplaced into argillites, greywackes, carbonaceous phyllite and BFC. In the western part of the Mahakoshal belt gold mineralization is noticed in quartz-carbonate veins intruded along the lithological contacts between metabasalts and dolomitic limestone, and in quartz veins/quartz porphyry dykes within dolomitic limestone. Bulk of the gold mineralization is associated with quartzcarbonate and quartz-carbonate-sulphide veins, emplaced during the initial phase of deformation of the Mahakoshal Belt.
Grain-Size Frequency Distribution in Ancient Depositional Environment - A Case Study from Lower Gondwana Sediments, Pranhita Godavari Basin, Andhra Pradesh
Authors: Majumdar Pinaki , Ganapathi S. 
Published: November 2024

Abstract
Environmental significance of grain-size frequency distribution of ancient terrigenous deposits has been examined in the light of applicability as one of the tools of environmental analysis. Synthesis of results obtained from grain-size analysis of 71 subsurface samples of Barren Measures Formation in Bellampalli-Chinnur area of Pranhita-Godavari Lower Gondwana basin points to the interplay of various sedimentary dynamics of diverse microenvironments within a broad fluvial system. Formative processes were controlled by availability of different sizes of particles and competency of flow. Channel pattern deduced from the study conform to the model of "mixed load anabranching river pattern." This study reaffirms the reliability of grain-size analysis of sands in interpreting ancient depositional environment.
Flow-Stratigraphy and Geochemical Variants of Bhadrajan Volcanics, Jalore District, Rajasthan: Implications for a Heterogeneous Protolith
Authors: Chittora V. K. , Maheshwari Anil , Coltorti Massimo 
Published: November 2024

Abstract
The Malani volcanics exposed in a curvilinear pattern around Bhadrajan are characterised by the presence of eight flows of rhyolitic to dacitic composition and have chemical characteristics similar to within plate, A-type granitic rocks. The pyroclastic unit present at the base of each flow marks the beginning of next pulse of discharge. The chemistry of Bhadrajan volcanics suggests two distinct rhyolite groups. Group "A" is characterised by high Ca, Al, Na2O/K2O and low Rb, Th, La, Ce and Rb/Sr as compared to group "B" rhyolites. The field and chemical data suggest a heterogeneous nature of protolith for Bhadrajan volcanics. The partial, melting of igneous and siliceous metapelitic protolith could result in "A" and "B" group of rhyolites respectively.
Tectonic Implication of Geochemistry of Gabbronorite-Basic Granulite Suite in the Proterozoic Delhi Supergroup, Rajasthan, India
Authors: Biswal T. K. , Gyani K. C. , Parthasarathy R. , Pant D. R. 
Published: November 2024

Abstract
The granulitic terrain of Proterozoic Delhi Supergroup exposed between Balaram and Mawal in Gujarat carries a suite of plutonic basic intrusive rocks consisting of gabbro, norite and basic granulites. Chronologically the suite is younger than metabasic rocks of north and central Rajasthan and occurs as melt intrusion within the host of pelitic granulites, calc granulites and granite gneisses. The suite ranges in chemical composition from alkaline to tholeiite through calc alkaline with characteristic major elemental distribution. Rare earth element chemistry shows Eu anomaly with LREE and LILE enrichment over HREE and HFSE. On the basis of the above enrichment it is invoked that the rocks are possibly derived from an enriched mantle beneath a subduction zone. Further, the Hf / 3-Th-Ta and Th / Yb-Ta / Yb systematics reflect a compositional match with calc alkaline basalt of present arc setting. These lead to suggest that the gabbro-norite-basic granulite suite signifies continental are magmatism in Delhi Supergroup and the Aravalli mountain had been evolved through continental collision and subduction during upper Proterozoic time.
An Integrated Analysis of Late Proterozoic Lower Vindhyan Sediments for Hydrocarbon Exploration in Western part of Son Valley, Central India
Authors: Das A. K. , Baruah R. M. , Bisht S. S. , Agrawal B. 
Published: November 2024

Abstract
Integration and analysis of all the available geoscientific data in Jabera-Damoh area of Son Valley, Vindhyan Basin have been carried out to evaluate hydrocarbon prospects. Taking lead from the rank exploratory well, time structural mapping over the area with the help of seismic data has established a southeasterly extension of Damoh structure, north of Jabera. The structure is bounded by two major NW-SE trending faults whereas ENE-WSW trending faults are more dominant in Jabera dome, in close proximity to the Son-Narmada Lineament. Tectonic inversion has affected Jabera structure mainly from Kajrahat Limestone member of Semri Group onwards. Seismic facies and interval velocity analysis supported by paleocurrent data suggest better development of reservoir facies towards north i.e. in the area around Damoh. Further exploratory efforts should be pursued by exploring Damoh structure and acquiring additional seismic data in the eastern and southwestern Part of this Category III basin.
Palaeomagnetic Studies of Intrusives in the Deccan Trap Around Nandurbar Area, South of Tapti Valley, District Dhule, Maharashtra
Authors: Sethna S. F. , Khateeb Ateeq , Rao D. R. K. , Saraf P. D. 
Published: November 2024

Abstract
The area around Nandurbar consists of compound lava flows (basalts) of Deccan Trap which are intruded by numerous prominent dykes. These dykes are mainly dolerites and some are quite massive and extensive. One major dyke was traced for over 50 km, from north of Dondaicha, westwards as far as Umaj, near the Gujarat - Maharashtra border. Petrochemical studies indicate tholeiitic nature of the magma. There is also an indication of two distinct magma types represented by high Ti and low Ti varieties. These two magma types have intruded as distinct phases with the high Ti dykes being cut across by the low Ti dykes.
The palaeomagnetic work centers around these dykes. In addition a few lava flows were studied for comparison. The older set of dykes show normal magnetization whilst the younger set shows reverse directions. The lava flows are also reversely magnetized. It is thus evident that both the dyke phases are younger than the surrounding lava flows. The older phase of dykes could have been feeders to the younger lava flows of the Deccan Volcanic Province but the younger phase is distinctly post Deccan Trap.
Active Tectonics Astride Katrol Hill Zone, Kachchh, Western India
Authors: Sohoni Parasg S. , Malik Javed N. , Merh S. S. , Karanth R. V. 
Published: November 2024

Abstract
Katrol hills occupy the central Kachchh mainland and belong to an area of active tectonism. This area is one of the few seismically and tectonically active areas outside the Himalayan mountain belt. A longitudinal fault flanks the hills to the north (Katrol Hill Fault Scarp) and morphotectonic analysis along this hill range has confirmed that the area has undergone differential tectonic uplift. Various geomorphological criteria viz., mountain front sinuosity, faceting, facet dissection percentage of 62 fronts of two sub-areas, valley floor to valIey height ratios and concavity indices of the streams flowing due north and south of Katrol hills reflect the amount of influence of tectonic activity during Quaternary times. Pattern of seismicity in the area reveals that all the known earthquakes in this region fall more or less in the Katrol Hill Zone running E-W for about 100 km. The warping of Quaternary rocks further furnishes field evidence of tectonic activity in post Upper Pleistocene times. Morphometric analysis along with seismic pattern and geological evidences indicate that the Katrol Hill Zone continues to be tectonically active.
GORDON LYALL PAVER (1913–1988) AND 42ND GEOLOGICAL SECTION, SOUTH AFRICAN ENGINEER CORPS: MILITARY GEOLOGY AND GEOPHYSICS IN WORLD WAR II SUPPORTING BRITISH ARMY OPERATIONS: PART 2, NORTH AFRICA, THE MIDDLE EAST AND THE MEDITERRANEAN REGION 1941–1945
Authors: ROSE EDWARD P. F. 
Published: November 2024

ABSTRACT
In September 1940, 42nd Geological Section of the South African Engineer Corps moved from Kenya to an operational base near Cairo in Egypt, continuing to serve within the British Army’s Middle East Command but with leadership by the newly-promoted Major Gordon Lyall Paver (1913–1988). The main part of the Section was employed to support the British 8th Army and operations west of the River Nile, particularly in the Western Desert of Egypt and Libya to Tunisia but also from bases elsewhere in Egypt, with surveys principally by means of electrical earth resistivity: guiding the deployment of Boring Sections Royal Engineers and other units in drilling boreholes from which to abstract potable groundwater. Detachments with similar roles were also employed further east of the Nile, in Sinai, Palestine, Transjordan, Syria and Lebanon, Iraq and Iran. In the Mediterranean region more generally, from 1943 additional deployments included Malta, Sicily and Cyprus, and later Greece. As conflict in North Africa came to an end in the spring of 1943, and so as to promote the use of geology and geophysics (rather than water diviners) as the best means for guiding the choice of sites for boreholes, Paver led teaching of a military training course in geophysical survey methods and the compilation of an authoritative textbook. In early 1945, as conflict in the European Theatre of Operations entered its final months, Paver assisted planning in England for potential deployment of the Section to the Far East and for the development there of an enhanced military geological staff—although hostilities came to an end before these plans materialized. Towards the end of his service, Paver completed for publication the final six of an 11-part series of articles on ‘Water supply in the Middle East campaigns’ that placed much military hydrogeological information on permanent public record. Demobilized in February 1946, Paver returned to a career as a consultant geophysicist, notably promoting ‘resistivity’ surveys to locate ‘underground water’, surveys including significant fieldwork in Egypt, Pakistan and Cyprus that developed his wartime skill base. He had pioneered and mostly directed the use of electrical earth resistivity surveys in support of British military operations during World War II and begun to influence a generation of Royal Engineers through his textbook: re-printed by the United Kingdom’s War Office in April 1945 to facilitate its long-term and wider use. Military honours were duly bestowed upon him for ‘gallant and distinguished services’ during the war.
A 30 Arcsec Resolution VS30 Map for Mainland China Using Refined Topographic Slope-Based Cokriging (SCK) Model
Authors: Zhou Jian , Li Li , Li Xiaojun , Xi Nan , Tian Xin 
Published: November 2024

ABSTRACT
In 2022, we proposed a VS30 proxy model based on the Cokriging method, integrating local VS30 measurements with topographic slope data (SCK model, Zhou et al., 2022). Utilizing this model, a VS30 map for mainland China was developed based on 7797 local boreholes. However, the initial VS30 map was produced with a coarse grid resolution of 360 arcsec and did not comprehensively cover mainland China due to sparse distribution of boreholes in certain areas. In this study, we refined the SCK model by explicitly accounting for the influence of surrounding topographic slopes, incorporating more distant VS30 measurements, and improving the spatial distribution of VS30 measurements used in the model calculation. Tests based on virtual cases were conducted to evaluate the characteristics of the refined SCK model. In addition, 142 VS30 measurements from strong-motion stations in western China were added to enhance spatial coverage and model accuracy in these regions. Employing the refined SCK model and the expanded VS30 data set, a new VS30 map for mainland China was generated. This updated map features a higher grid resolution of 30 arcsec and covers the entirety of mainland China, showing reduced estimation errors and improved continuity. Comparisons with the U.S. Geological Survey Global VS30 Mosaic indicate that the results from the refined SCK model are more reasonable, as evidenced by local topography, VS profiles, lithologic profiles, and geology map, which better capture the impact of local geomorphological differences and climatic conditions on VS30 values.
Profile of postpartum patients with urinary retention at Koja Regional Hospital, Jakarta, Indonesia
Authors: Djusad Suskhan , Meutia Alfa Putri , Hakim Surahman 
Published: November 2024

HIGHLIGHTS

Maternal age and fetal birth weight are key risk factors for PPUR.
Among 300 subjects, 63.7% experienced PPUR, identified using the Suskhan score, with catheterization as a useful tool for prevention and management planning.

ABSTRACT
Objective: Postpartum urinary retention (PPUR) is a common voiding disorder, defined as the inability to void spontaneously within 6 hours after delivery with a residual bladder volume exceeding 200 mL. High rates of PPUR in Indonesia indicate a need for greater awareness and intervention. This study aims to assess the incidence and potential contributing factors of PPUR among postpartum patients at Koja Regional Hospital in Jakarta, Indonesia.
Materials and Methods: A descriptive case-control study was conducted, including women who experienced urinary retention following vaginal delivery at Koja Hospital between September and December 2022. Residual urine volume was measured by catheterization 6 hours after delivery. Data analysis, performed using SPSS version 22, included patient demographics and clinical factors such as maternal age, parity, gestational age, neonatal birth weight, and postvoid residual urine volume. These factors were analyzed to determine their association with PPUR.
Results: Out of 300 subjects selected through consecutive random sampling, 63.7% experienced PPUR, while 36.3% had normal urinary function. Patients with a mean age of 26.91 ± 5.02 years (p = 0.000), primiparous status (first-time mothers) (p < 0.001), and a mean neonatal birth weight of 2980.95 ± 450.52 grams (p = 0.000) showed a higher risk of developing PPUR compared to other postpartum patients.
Conclusion: The study indicates a significant association between postpartum urinary retention and maternal factors, including younger age, primiparity, and higher neonatal birth weight. Identifying these high-risk factors can enhance PPUR management, allowing healthcare providers to implement targeted monitoring and preventive measures, potentially improving postpartum outcomes in this patient population. This underscores the importance of monitoring these risk factors to better manage and potentially mitigate the incidence of PPUR.
Nutritional status, hemoglobin, and albumin levels in predicting platinum resistance in ovarian cancer at Dr. Saiful Anwar Hospital, Malang, Indonesia
Authors: Nurseta Tatit , Widowati Ayu Rizky 
Published: November 2024

HIGHLIGHTS

Nutrition status, hemoglobin, and albumin levels are not predictors for platinum resistance.
Hemoglobin and albumin levels increased in both platinum-sensitive or platinum-resistant.

ABSTRACT
Objective: This study aimed to determine whether nutritional status, hemoglobin, and albumin levels could serve as reliable predictors for predicting platinum resistance in patients with ovarian cancer.
Materials and Methods: Conducted as a cross-sectional analysis, this study included 80 ovarian cancer patients who had completed six cycles of platinum-based chemotherapy. Patients were divided into two categories: those with platinum-resistant cancer and those with platinum-sensitive cancer, based on recurrence status following chemotherapy. Nutritional status was assessed through body mass index (BMI), and both hemoglobin and albumin levels were measured pre- and post-chemotherapy to investigate potential differences between the groups.
Results: The analysis revealed no significant difference in BMI between the platinum-sensitive and platinum-resistant groups (p = 0.743), suggesting that nutritional status, as measured by BMI, did not correlate with platinum resistance. Hemoglobin levels were similarly non-significant before (p = 0.072) and after chemotherapy (p = 0.055), indicating no clear association between hemoglobin levels and platinum response. However, hemoglobin levels showed significant increases post-chemotherapy in both the platinum-sensitive (p = 0.002) and platinum-resistant (p = 0.025) groups, though without affecting resistance outcomes. Pre-chemotherapy albumin levels did not significantly differ between the two groups (p = 0.218); but a significant post-chemotherapy difference was observed (p = 0.027), with both groups experiencing substantial increases from pre- to post-chemotherapy (p = 0.000).
Conclusion: The findings suggest that BMI, hemoglobin, and albumin levels are not reliable predictors of platinum resistance in ovarian cancer patients. Although both hemoglobin and albumin increased significantly after chemotherapy, these changes did not correspond with platinum resistance status.